I love your choices, and second the idea of adding some black trim in the white. I think that it would be amazing. Are you thinking of crackle tile in the shower? If so, double-check if that is ok. I a have crackle finish backsplash in my kitchen and the manufacturer recommended sealing the tile to prevent any stains from food splashes seeping in through the cracks. That makes me think that it might not be a great option for a wet installation like a shower. Hopefully someone more knowledgeable than I am can chime in.

Hey bud, I'm not going to get into a "who's greener" pissing contest. However, I will tell you that my monthly gas bill for a home in central Indiana - with all gas appliances - is $33 a month - without any exceptional sacrifices. This is a plumbing forum. Too many people are thinking it's cool to install a multi-head shower or a 80 gal tub and they have no clue what that really requires in terms of energy, water, water heaters and drains to make that happen. Evidently your builder is one of those people; he planned on running this setup on one tankless. Just having the capacity to do it, even if you don't use it often, requires commercial sized water and gas supply, water heaters, etc. We are going through a period where a lot of people have lost their homes, in part because nobody was willing to make value judgments. Nobody was willing to say that what was going on was completely unreasonable. It became "normal" for people to buy more house than they could afford and carry stupid amounts of consumer debt. I am not one of those people. I'm not going to pretend that what you are doing is okay. What you are doing is completely unreasonable. It's wasteful, it's ugly, it's distasteful, it's gluttonous. The fact that you can afford it doesn't make any of the previous statements untrue. The fact that you drive a car that can go 180 mph doesn't impress me one bit - it just confirms a pattern of ugliness. To be clear, you have your values, I have mine. But I contribute to this forum for free - and I reserve the right to make value judgments when needed. If you don't like that, you can take some of that money that you are throwing around and hire a competent builder to design your plumbing system - the one that you have doesn't have a clue.

weedyacres, thanks for all the advice! :) I don't know why everybody thinks I'm jumping into this tomorrow but this is something I don't plan on doing for another 3+ months, maybe not even for another year. Who knows. But by nature I'm very proactive and like to start planning so I can prepare. The kitchen is a different story because I am literally moving into a house with ZERO appliances - I don't want to live off take-out every night, and not even be able to take home leftovers! I appreciate everybody looking out for me in terms of budget and experience, I really do, but there's a lot of (personal) details I haven't added in my original posts. My mom updated her bathroom all by herself, and has done MANY other bathrooms for other people. This bathroom is much bigger than mine (the photo doesn't show it all). All new flooring, wall tile, mirror, faucet, shower fixtures, etc. She did this bathroom for $600, so I think my 2k tile budget is conservative. Oh and she is a house wife (no job), so she just spends all day doing this type of stuff. My budget outlined above was meant to include everything that is required (additional materials and tools if I don't have them already - I also haven't mentioned that I worked for SB&Decker for 3 years and have literally a closet FULL of Dewalt hand and power tools). I also have other friends who have just completely renovated their entire home by themselves (and were in my shoes less than a year ago). They had help from their plumber uncle but other than that they basically gutted and re-did their whole house themselves. We're all Engineers too, so we have a sense of structures. I might not understand house terms but I have a good sense of math and physics and have done a lot of research, calculations, and budgeting that I'm confident in. My GC is also a great guy, and has even offered to lend me his tools if I want to DIY things myself. I don't get into these details though in my original posts because I'm just looking for design guidance, not necessarily how-to's. You're right about my lack of knowledge with home DIY and construction, I'm a total newb! But I've been reading, researching, and watching a lot, so I'm learning every day. Houzz has just been another great outlet for me to learn, especially coming from people with firsthand experience! Fori is not pleased, I definitely plan to now. That's great advice. I'll look into what current code is and how my bathroom (now) meets it, and what would need to bring it up to code. My GC called out a few things during the initial walk-thru and he seems very familiar with the codes in the area, so he can help. I'll do all this before I start any renovating. When I say "new layout" I don't necessarily mean moving stuff around. Maybe I should re-phrase and ask how to design the bathroom. Mostly I just don't know what to do with the inset wall. Do I put cabinets all the way from the (current) sink to the door or do I leave empty space underneath and put a bench? What's practical? What would look nice? etc etc.

Sorry I'm so late getting back to you. I think that oddly sized fixtures can be off-putting. Many home buyers are looking for an "ideal" and they can't see past that. If the tub is well made and the bath is located where it's most needed a shorter size tub might not be a problem. If the bath will be used by children then its size is less important, but children grow into teenagers. acm voiced a concern I had about the location of this bath to nearby bedrooms. My mistake in calling it water-resistant drywall. It looks like drywall but it's better referred to as tile backer board. It's most often 1/2 inch thick but I have seen a Hardie brand backer that was only 1/4" thick and came in 3 x 5 ft. sections. HERE is a link to more info on these. There are several types with differing properties. On toilet location, I don't think "obstruction refers to the nearest wall or fixture. I think it refers to something directly in front of the toilet. Looking at your floor plan an angled toilet would not have anything in front of it. There might be room between the toilet and the vanity for a waste basket.