All the @guidothepimmp mentioned is good stuff.
Pics would help assess condition! But lacking that, condition (parts missing, original finish, playability, etc...) play a major role - it'll be damn near impossible to find replacement original parts for these two if there's anything broken/missing.
Found a bison on reverb 0 $699! But that's a real speculative price. Looks to me as a Japanese copy of a Burns Bison - the 60's had Japanese builders making cheaper copies of US/UK guitars. Locally, there's some interest in these, but it's tough to say. Depending on condition, somewhere from R1k-5k. And 5k would be a mint example with original case to someone who reallly, realllly wanted it.
The Horugel (first time I ever heard of it) is likely a re-branded Samick from the same era. Again depending on condition (and model - there's acoustics and electrics, somewhere from R500-R2k. And 2k would be maybe ambitious .
