Just redid my bathroom. 5' x 10' bathroom. Took it down to the studs, but I did leave the tub as it's in awesome shape and an old cast iron tub. Here is what I did:
Demo: Me. $25.00 for 30 pack of Bud Light.
Light Fixture: $125
Vanity and Top: $600 (bought a decent one at Lowe's)
Toilet: $400 (bought the one that can suck a child down the hole. almost lost my 6yo. luckily she is strong and pulled herself out.)
Flooring: $375. (included durarock, mortar, screws, and
this tile. . looks awesome)
Sheetrock: $700. (I hung the sheetrock but had a guy tape and mud and knockdown texture the ceiling. He cost me $600 of the $700.)
Paint: $90.
Shower tile: $200 (did white subway tile with grey grout. looks cool)
Shower and sink fixtures: $250
Misc plumbing stuff: $100
Extra beer: $50
Wood trim: $100
Total Cost: $3015
I did all the work except the taping and mudding of the sheetrock. Bathroom looks great.
I used to do this for a living, so I bought decent finishes, but everything was off the shelf from Lowe's.
Tell the guy who bid you $17k to pound sand. Hell, I'll come do it for 17k.