I'd leave the tub, it looks fine - then just demo down to the studs, redo the tile (cement backer board, sealer, tile, grout, adhesive) and faucets/valve and move on with it ($200 in parts).

If I want to drop a grand, I'd like to see a demo first.

We have run into this alot....cheaper just to demo and redo the drywall.  

The other option is to drive the area and see those homes that are demoed or sitting vacant with a fence around them.

all those charges at home depot quickly added up to thousands upon thousands, and the past 2 months i've been behind on payments, and i'm not even nearly done yet, heck im still doing some demo..  

By the time she realized work wasn't progressing she had given them almost all of the budget $55k and ONLY DEMO WAS DONE!

Have quotes for demo / remove, over $10k.My question: it seems to me there is salvageable value in some of the lumber, metal roofing, even the old MH.

Overall, cheaper than the demo and replacement and not any real sticking points or domino effects (where one thing leads to another, think counters, backsplash, demo discoveries, ordering mistakes, sizing issues etc..)

Youtube has some good demos on pm software. 

If you didn't catch it, I mentioned the existing structure was already way out of code with an upstairs addition having the 2x6 joists - actually his contractor fell right through the floor when they did demo because the joists were almost 80% notched to put pipe through - he had pointed that out to me this was out of code and he'd support it somehow, but clearly not enough was done.