[AI2V]

Looks sparkling!

I know it would be a pain but I would grind off the rivets that hold the forks, clean all of the surfaces (especially the cap frame where the fork makes contact), and put it back together using screws.  There's an awful lot of oxidation on the frame and it could make for a very noisy and intermittent tuning.  A Dremel tool with a small grinding will quickly cut the rivets.  The whole operation should take less than ten minutes.