anyone looking for a stock 88-89 swing arm whats it worth to you?

[trx310R#24]

im thinkin about putting a 450 swing arm on my R. so i wanted to see what this one is worth its in great shape a littlie dirty but it will wipe off. i know theres got to be someone looking for something like this.

http://i36.photobucket.com/albums/e16/asm43101/DSC00329.jpg