claw foot tubs may look cool, but for actual showering in them, forget it. PIA
NY Farmhouse, it's great that you have DIY skills and a wood shop friend! Yes you can completely redo that bathroom on your budget. Yes you have to know how to shop and score on deals. Like, really score.
I redid a builder basic bathroom years back on a house we flipped. took it down to the studs. I did all the tiling (carrara marble I found on craigslist for about $3 a sq ft!) I found a mid century chest and made it into a vanity. found clearance items (sink, marble remnant countertop, cabinet over the toilet, etc) on everything in that room. Biggest splurge was the glass shower doors. total budget was under 3500.
(after pic is inset, below)
here are some ideas since you like the farmhouse type of look. do the walls in shiplap or rip your own boards out of sheet plywood.
have your friend make you a double vanity for your girls. (or get one large sink) he can also make a matching cabinet if you need one. to save space, try to recess the linen tower into the wall and add a door. or do cubbies.
if you want to replace your floors, look for close out deals on tiles. always try to get a better deal by offering to pay in cash.
Go to a tile store and see if they have small, left over lots. (look online for the same). check craigslist. People often overbuy and can't return leftover tile. Barter.
lighting,,,,Lampsplusopenbox. super deals on there.
you can buy a single, plain vanity like this, and have your friend 'add onto it" for storage. Paint.
Go to an actual stone fabricators shop and see what leftovers he's tossing in the trash. make an offer and see if he will cut it to fit your vanity.
check out 'pre fab' granite/marble countertops. they run about $500
these are at my local tile warehouse
totally doable for you. make the vanity (see below), paint it, make the mirror, find a remnant countertop, and tile. the white subways are cheap. ditto ceramic floor.
these aren't that difficult to make
simple to make and can be painted.
show your wood friend these vanities. make them with a nice, paintable-grade plywood. Prime and paint. keep a lookout for remnant tops. or, make your own wood butcher block countertop and seal w/something like Waterlox.
another option is to find an old piece of furniture and repurpose it for your vanity. for $100 bucks, you could easily find one like this and paint it.
the lights can be found at Home Depot for $20 each. spray paint them in a nice spray enamel.
shiplap walls (or do a headboard).
Q
Everything
Q