Looking at buying a 3rensho. However, it's sans-fork and I'm going to have to have one built because it's so large (62cm). I was really hoping to find and use the fork crown used on the Gan Well Pro track forks, but can't seem to find any info on them. I've got a backup Crown in mind, but would really like to find the Gan Well one.
~adam

Have you tried matching it with ones available from Framebuilding supply shops like:

https://www.framebuilding.com/