My selection of nice vintage here for you... Yashica GSN- corrosion but shutter is opening/closing fine`..#h434897 rangefinder is quite nice... might work fine for you. Zeiss Ikon Contaflex #6 76893 hope you brought your tools & manual.....
... she with Russian Kiev, ..needs something.. these are good project camera for you & perhaps you need some parts...
Argus c3 seems to be working fine... there is also a nice 55mm screw mount 1.4 sears. -working blades ar sluggish a bit.- glass is clean on lens. so there you have it... some nice older 35's... sort of working sort of not... any ?? I'll do my best. thx!