I am pretty sure that Quality bikes has Rock Shox forks available in 1 inch. I can't remember the names but they are lower quality. They only sell to shops but if you go into a shop you can have them order it for you. They also carry rigid forks in 1 inch for suspension correction. You would probably need a 65 mm correction or a 50 mm corrected fork. It mostly depends on how your frame was originally set up for.