Son of Norway wrote:
First, figure out what chassis the RV is built on and get a manual for that. Then go through the RV and note the make, model and serial number of everything: water heater, furnace, converter, etc. Use that info. to find manuals and info. online. That is the information that you really need to own the RV. (Try Bishko Books for the chassis manual.)
This, right here is what you need to know. My Tioga had a stack of manuals for the appliances which all came from the appliance maker, not Fleetwood. I would suspect there is no "Brittany" manual, there are only manuals of each independent item.
Hopefully you are handy. Parts, even for my '94, are difficult to find. Besides each build run used something different it seems so rebuilding your shower area, you are on you own to fit new parts into the old coach.
Personally, I find that part of the fun. Cat, my girlfriend, mentioned this morning how much more enjoyable it is to have a coach that requires creativity. Enjoy your new project(s).