Rat, short HD springers looked pretty good with a fenderless 21 inch, so you should be fine.
Few things,
bone stock length springer have not been plentiful for a very long time, can be very pricey. late factory remakes are probably less, are chrome and have a damper.
they are probably a few inches shorter than a Honda fork
you may want to consider a VL springer, which is being repopped, the I beam type, it is often called.
try Paughco in Carson City Nev, for some aftermarket springer that is fairly close to the HD design..