If the longer plug doesn't work cut the steerer near the top, and add extension from part of another steerer tube with an internal sleeve and have it tig welded. If the weld bead is too high you can have it turned on a lathe or file it down. Tig welding will likely not mae the crown ara of the fork hot enough to melt the paint.
1" steerers in stock.
https://www.cycle-frames.com/1-inch-...-NON-THREADED/
Last edited by wsteve464; 05-30-20 at 06:59 PM.