I'll second the recommendation for Robertson's. I got two last week and have a third en-route. The '87 (year, not type) was pretty rough when I got it, and felt like it had sand in the action. I used just a bit of non-chlorinated brake cleaner to hose it out and it felt fine. They are great guns for the money, but expect to give it a good cleaning when you get it. If you are planning on refinishing it, then how dirty it is makes no difference. If you are just looking for a shooter, give it a good cleaning and your good to go. The '92 I got was a lot cleaner and the finish was better than on the 87, but now that both are stripped back to bare metal, you cannot tell the difference between them.
Also, the folks at Robertson's Trading Post are great to work with and, while they won't pick on out for you, they can point you in the right direction and have lots of pictures of each gun to make your choice easy.
Tim
