All of those shutters, individually and together, look silly to me. I'd remove them and trim the windows out appropriately. I'd be surprised if any of those shutters were there in the 1920's. At least on those windows. Are the main level windows original 1920's? They don't seem like it. Similarly, the center windows over the portico would typically have been much smaller. Historically a house would have been designed so that all or most major windows had functioning shutters. It'd not be unusual to not have shutters on some smaller or odd-shaped windows but the major windows would have had them (depending on geography and orientation). If those windows and ill fitting shutters are 1920's originals then they seem well ahead of their time.

I had a 20s midwest house and the kitchen and back hallway didn't have the nice oak of the formal rooms. It had a pine subfloor and linoleum with parquet glued on top. Unsalvageable. (You can do wonderful things with new linoleum--not vinyl--with borders and great colors. It's very nice.) I would expect that your bathroom had (maybe still has!) tile floors.

Who should you talk to when it comes time to build: Connor Homes Mill-Built Homes of Middlebury, Vermont!!!!! They build/ provide "New Old Houses" KITS... They have many home plans to choose from, and options... you could also throw in some timbers or do part of your home as post and beam construction... perhaps the center of the home where the family room and kitchen open concept design with a stone fireplace.... talk to them. They have been building and custom designing homes for over 30 years, I think. Your style seems to be a mix of early "New England Colonial American Farmstead"... because colonists came here mostly from England and Old European countries they brought with them their design and building methods and home layouts... central hall entrances, breezeways to the "barn" which is in modern days... the garage... They used post and beam construction, field stones, and bricks when available for the construction of residential homes... homes were built to withstand the inclement weather, so you found several chimneys and fireplaces throughout, because when it was cold, it was cold... candles were strung up from the beams to store them or while they were making them. etc. It's the small details that make the home, and your pictures depict to me a warm cozy, made from materials of the earth construction that this company was founded on. No, I don't work for them... but I wish I did... https://connorhistoric.com (where it all started) and now: Connor Mill-Built Homes - The Traditional Building Conference Series (traditionalbuildingshow.com)... Enjoy and Good luck! And to answer your question, yes... they will make a house for you in Texas! UPDATE, sorry just saw this... what a shame: Connor Homes closes its Middlebury shop - Addison Independent It may still be possible to buy a Connor Home from the company that bought them out. You'll have to do a little research if your interested. After you look at the homes on their site... you probably will be!

What type of build is the home (tract/developer, custom, semi-custom)? If a tract type home, he his partially correct in the fact that cosmetic may not be a successful fight. As far a the hole in the grout, if waterproofing correctly that should not make a difference performance wise. Do you know what or how the shower was constructed?