You are in the right place.
Look in the vintage subforums for all things related to your particular years.
There are subforums for plumbing and electric to include solar.
Look for threads that say renovate, refurbish, shell off, full Monty, etc.
Don't throw anything away those parts are quite desirable.
The interior paint is likely zolotone if it's original.
Check your frame and floor so you can decide if you are doing a shell off or lift to put new subfloor in or strengthen your frame. Axels can wait if your not going to tow it till you're done.
Seal and tighten up openings, windows, compartments and doors to keep the elements out.
Read, read, read. Have fun. Take lots of photos.