price of lasers from wicked lasers

sHello,

we found in a warehouse a lot of lasers from wicked lasers and I would like to sell it. We found one guy who is interested but I don't think that he offered us fair price.

We have these lasers:
artic 2.5w
artic 3w
interno 1w
krypton

We have a lot of them and they are new. Some lasers have powergraphs (the most powerful is 2.52 acording to powergraph). We have all accessories like glasses, lenses, batteries, chargers ect.

So guys, what do you think would be fair price?

Thank you so much