A lot of my business is on hold right now.
I do remodels and service work, it might be because I have an older clientele but most people don't want you in their house unless it's an emergency.
To be honest I'm in the higher risk category so I'm fine with holding off.
Don't know if you can can go up to 54 inches long or not here's an option for you, you can click on the size option and they show a 36 by 54 for $189.00
I've installed a few of these and have had pretty good luck with them. The signature hardware site has quite a few different options pretty...
The way you have it drawn is correct.
Because it is a shower you'll need to put in a 3 inch wye at the toilet and then a 3 by 2 wye where it splits to go to the shower and lavatories, put a 3 by 2 bushing in the end of the wye and run 2 in to the shower drain.
Shutting the water off at the main and opening all the faucets will help keep your pipes from freezing.
There's a little more to draining the water from your boiler system then just refilling it, you would need to go around to each radiator after it is refilled and bleed the air out which...
The bell looking cap should turn counter-clockwise to remove. Google strap wrench they do make one that is rubber and would grip onto the polish brass without scoring it.
With a faucet like this using the braided hoses it would be easy to do with tee's
I know this is a lav faucet, just for an example.
https://www.tsbrass.com/p/medical-lavatory-faucets/B-2865-05
If you have an oscillating tool cut the nuts from the bottom to the top you'll be able to put a flat bladed screwdriver in there and spread the nug apart.
If you do not have the oscillating tool use a drill and drill bit and drill the nut from the bottom to the top.
It is brass so it will cut easy.
The rubber piece is a restrictor that needs to be pushed back up into the fill valve with the closed end up, it reduces the flow of the city water pressure into the valve.
Rebuilt one for my parents years ago and I just went with the cartridge.
https://www.homedepot.com/p/BrassCraft-Mixet-MXT07-4-1-2-in-Hot-Cold-Post-1968-Stem-with-Retainer-MXT07/202054491?MERCH=REC-_-PIPHorizontal2_rr-_-203629506-_-202054491-_-N