Want to sell my Factory a/c condensor and blower box also my under dash heater box on Ebay. Whats the going rate for one that need reconditioning?

BB or SB? It makes a huge difference.

Small Block.

Depends on what "needs reconditioning" means. If the evaporator box is busted up, it has very little value. Lots of busted ones out there, but not too many not busted up. Inside box is worth maybe $100. Condenser, maybe $50 (depends on the condition of the fins) The only thing that's different between b/b and s/b is the evaporator box and evaporator, return hose (big one), and the heater core. Everything else is the same for both.