Hi Mark,

A more difficult question than you might imagine. Here is a closed ebay listing that went for $81 (no lenses or film carriers).

Condition matters as well. Assuming everything works but is pretty well used, and all you are getting is the enlarger and the two lenses (assuming the condenser setup is complete) I would offer $125. You might learn something from how this auction turns out.

Good luck,

Neal Wydra