I'm on disability & had to wait another month. Fun, fun! I keep checking craigslist and carpart.com (junk yard listings). Wish I still had Facebook, because I think most are listed there. There aren't very many high rise/mid-rise toppers for trucks as old as mine with an 8 foot bed. Ideally, I'd get one with wing windows, but that will be impossible on my budget. I found one, but it was cab height.
Just found a high rise, but it is too far to drive to (Nebraska). So I'm back to two that are close (enough) to me.
Edit: I like the first one (off white), but it appears to be bolted to the bed rails. Plus, it has seams on the body and I worry about leaks. Looks clean inside. It came with the 1979 Ford truck from the factory and has a vent in the roof. It is on craigslist for Altoona, IA.
Nevermind that first one. I see the Chevy logo. His/her sizes can't be right. I deleted it.
Edit: I wasn't seeing things. The listing says it came off a 1979 Ford, but I see the Chevy logo on the truck:
https://desmoines.craigslist.org/pts/d/altoona-truck-topper/7444245181.html