Hey man, not to low ball, but I don't think clones are worth as much as the real deal, and coming to SFII, I don't think it's worth that much as it is.
I'll offer $20, plus shipping just to send it to MAME to get dumped. If I can dig up a normal SFII, I'll send it to you, plus pay for your shipping to send that one to me, if you like.
If I'm waaaaay off here and someone thinks this is worth a ton of money, please reply so I don't ripe anyone off. Thanks!