I had my 74
Boler painted at a auto body shop 20 years ago for $1,000.
There was several spots that required
fiberglass repair, including a broken front window and a bunch of cracks (several feet long) in the
fiberglass on one side of the window and extending onto the roof (it looked like the previous owner backed into the window with a flat bed truck).
They used a single stage polyurethane automotive
paint (white).
It turned out great and I have been very happy with the staying power of the
paint over the last two decades.
I would suspect the price may be a bit higher now!
If I was to paint a camper again, I would definitely go to a body shop.