Seller sounds like a jackass..I think Medium scale series II basses with an omega cut in coco-bolo are pretty rare and do not come up for sale often. As far as price goes, I think it is a little high, but probably not as high as others think especially when you factor in the wait time to have a new bass built.
I can see someone with a must have it now mentality doing horrible things to their 401k plan to try and own something like this now instead of later.....