I've got a sneaking suspicion that the seller will get his asking price, if he's patient enough for the right buyer to come along. Where are you going to find another one like this. A Caprice equipped like this was unheard of when they were new......let alone now.
Here's one very similar but in need of full restoration. http://hartford.craigslist.org/cto/5924624702.html
I hate that even a basket case commands such a high price, considering you spend sooo much more in restoration than you get in worth.