We DO have individual shower water supply shut off and I've actually already had it shut off I believe. I will double check to be sure.

So assuming that's the case, then I basically need to coordinate the plumber with the tile guys so that the Plumber comes in to do his part after the tile guys remove the old tile and before they get ready to put in the new tile. Which of course, will be a PITA lol.

But replacing the valve and ONLY the valve is possible without having to change the whole shower body, right? I mean, this *should* be able to be done without it costing me two legs?