Help with finding any material related to my 5th wheel

Most RV owners manuals are not very helpful and just generic stuff. If you need owners manuals for the different appliances, you might be able to find them at Bryant RV Service. That site is owned by a member of our forums , Chris Bryant, who generously makes them available to us and the rest of the RV community. :)
If you are looking for service manuals, click here.

There is never a plumbing or electrical manual or schematic. They are built and plumbed and wired different each day according to whoever is working on it that day.
B.O.

Rv's usually don't come with owners manual. They usually contain a packet of information from the various manufacturer's of components used in the RV.

They were later sold under the name Veri-Lite.

I wouldn’t get terribly concerned about finding an overall manual. They tend to be generic and vague with more warnings than information. Concentrate your efforts on identifying components like refrigerator, furnace, AC, water heater etc. and find those manuals. They will be more useful.