It never hurts to offer a realistic price for an entire set-up like that. By realistic, I mean a price that is in line with the currant market will bear. That being said, I would start around $225, and keep tight lipped about what your upper limit is. For an upper limit, I would stop at probably cut off at $400, this being totally dependant on the condition of the most important pieces offered, the enlargersand lenses. I've seen Schneider and Rodenstock glass for $10-$20, and Besseler 23"s going for free.The rest of the items,would more than likely end up in the landfill. There are quite a few folks out there just giving these things away, or tossing them out. I have bought three complete darkrooms for a sum total of less than $400 for all combined. Use your judgement, and trust yourself to make a good deal.