Are you specifically looking for a person or business in Cambridge?

Either, whoever may have availability. And doesn’t even need to be Cambridge-based, just willing to travel to Cambridge, as I cannot move my bathroom.

Got it

How involved is the replacement? Multiple trades (tile, plumbing, carpentry, etc) or just a clawfoot type bring out the old, bring in the new?

Tile, plumbing, carpentry. Removal of a low quality rusted out 10 yr old alcove tub that fits within 3 sided tile walls. First floor.

I cannot help you directly, but for what it’s worth: I’ve been pretty successful with Thumbtack (in Somerville). It’s an app/service for finding all kinds of experts/handy people/whatever. Like, I’ve found people to do quality work for really reasonable rates.

(Writing the above makes me feel like a shill but like, I really have had a good experience with it. YMMV I guess, but maybe give it a shot.)

Thanks for the tip, I’ll look into it.

There are no trustworthy contractors in Boston

SILA should do it, it probably won't be cheap. They will likely subcontract tiling (and carpentry?). I had a mixed experience with them, but I'm not sure who would have done better given the requirements.

I’ll send you a DM