chucko,
Did you get a price from the guy? Like Dave & Bill said, check online. also try nadaguide.com. The 3 companies always seem to come out different, but I'd obviously use the lowest quote when working a price with the seller.
Not to hijack your thread but I bought a new truck last night.
I got a GMC but there were so many rebates going on that I got it for $4000 below invoice. Like Bill said, all the rebates made the sales "hassle" virtually disappear (although I did haggle with them throwing more options on it).
Not as pretty as the King Ranch but I attached a pic anyway...