If you dont mind the 69 Skylark body style, I've got one for sale in a hell alot better shape, and cheaper too. Located 60 miles east of Lubbock, TX. http://www.v8buick.com/showthread.php?t=167887
I paid 2500 bucks canadian for my 69 GS, it's a real gs, had only 2000 miles on the 350 that was just rebuilt, new homemade gunmetal grey paintjob, a little rusty (bubbles under the paint, not exposed) around the rear fenders and inside the trunk between the trunk lid and the rear windshield. needs new bushings, squeeks a bit around corners, but it runs like it just came off the factory floor, leaks in a couple different places but is a solid car, no holes in the floorpan or trunk pan or anything. You can definately find a much better deal than that, looks like more trouble than it's worth.
I found my GS350 for about 3400.00 before shipping. very solid car from the Yuma AZ area. It was a diamond in the rough. BEFORE AFTER