About how much are wheels & tires going for?

[88 Fox GT]

I have my Cragar Street Stars (15x7 rear and 14x7 front) with Winner Winston GT tires (235/60 rear 225/70 front). I haven't put many miles on them and the tires are in great (nearly new) condition. What do you think someone would give for them? I don't have a clue what used wheels & tires are going for now. Maybe you guys have an idea?
Thanks.