As Bill said, the Pacific Northwest has a very high concentration of Saleen Mustangs. Between Bill, Dennis (SEMA88), another friend and myself, we have five Fox body Saleens and could easily round up another 4 or 5 among our circle of friends here locally.
86GTStang, if you're interested in getting a Saleen Mustang, you really should considering ordering up a copy of
The Saleen Book to educate yourself a bit about the cars.
As far as that car goes, from what I can see in the pictures it doesn't look that bad. I've seen cars that look worse than that being advertised for over $10000 here. As long as the Saleen-specific parts are there, it may be a good deal, considering that it is already over there. Some things to look at specifically are the condition of the seats, steering wheel and shift knob. The seat fabric is no longer available and the wheel and knob are very difficult to find in good condition and very pricey when you do.
One other recommendation for you: You might want to visit
the Saleen Club of America forums with any specific questions. They're a very knowledgable group and are more than willing to help out a newcomer to the Saleen world.
Good luck!