When I sold mine I only got $175 and Im a bit strapped for cash right now. I would be greatfull if you would hold it for me but Ill be honest $150 is about all I could do.
No hard feelings if someone offers more and you sell it.
By the way Art Department Pro is a really good package for anyone interested in converting or working on images on the Amiga its very powerful (I have it and would never part from it).