I get the feeling Norbsa likes these A65's.
I have had 2 Lightnings & a Thunderbolt, & they are bloody lovely bikes, & various A10's as well.
I have replaced a few timing side bushes, for myself & friends. Never had a problem with them provided it is done correctly.
Personally I woudn't bother converting to roller, but of course the decision is with the owner.
Too many of these bushes are bodged up, then, of course, they are a load of crap.
The A65's are a remarkably quick bike for a 650 when sorted out properly.
I have been contemplating getting another one for everday use to replace my Yamaha, & japanese bikes don't really interest me. The only thing that has stopped me is that the gear change is the opposite way round.