I can't speak for A65s, but I have a later set of forks on my 441. There are kits for installing tapered roller bearings in the fork neck precisely for that purpose and the forks just pop in place. It didn't make the 441s steering heavy, although I can't compare since I built the bike out of a basket case. I would be surprised if there aren't similar kits for the A65.

Ed from NJ