I havent found this topic yet so forgive me if a repeat question and also for my lack of technical terms. The "frame" that holds the shower knobs on our 5th wheel interior shower has cracked. Hubby caulked it as a temp fix. Is repkacement of the shower assembly something that can be done by a person with basic plumbing skills or should it be do e professionally?

I have done it and am no pro.

A fairly large adjustable wrench and a screw driver is likely all that is needed maybe a couple of other tools but it won't be many.