The hard part of selling em is shipping. You'd ahve to find someone in your area that is willing to pick it up.
I see the 45s selling for $300 to $600 depending on what other accessories you have. Is it a color head, cold light, regular bulb? Is the condensor in good condition or is it missing or broken? The condensors alone sell new for $200, a valuable item to someone in need.
Negatiove carriers are sold separately for $50 n up depending on if they are glass or plain, or even more if they are special formats.
SO the biggest problem is finding someone that wants n is local.
I'd love to take it off your hands if you are in NYC?