Most any 70's to 80's SLR by Pentax, Nikon, Minolta, Canon, Olympus or Konica will suite your needs. There were also a bunch of SLRs with m42 or Pentax K mount made by Cosina, Chinon, & Ricoh that will also work. I'd get one of these SLR bodies with the best LENS that you can afford and go take pictures. Have fun!
BTW, Soviet/FSU LENSES can be quite good. Most of the camera bodies were mechanical disasters. So if you get a m42 SLR there are hundreds of decent lenses that will work with it.