The gear is only worth what the market will bear. If you are the only one interested in it, then it is only worth what you are wiiling to spend. Offer only half what your budget will allow, and dicker from there. tell the seller that you only want a portion of his setup, and are only willing to pay $X- if he wants it all gone at once, then tell him to throw it in for free. thats only my suggestion, its a starting point. Good luck, and keep us updated.