Stephen
Years ago I had an International that had a high speed shimmy. I had several top notch frame people work on the frame and fork alignment and never could get rid of it. I ended up putting a nice chome-moly Tange fork on it and it rode like a dream.
Anyway, my point is if you want a fork so you can ride the bike, you can go that route, if you want a fork to return the bike to show condition, you might be in for a long search.
Brad Luecke
Columbia MO