I did mine a couple years ago. I did remove the motor to do it. You could do the whole thing in a weekend.
As far as whether the 92ci is as good as the 100ci and 106ci motors, I have read that the 92 Freedom motor is probably the best of them all.
I have 47,000 on mine so far, 23,000 since I installed the big bore kit. These motors seem to be bullet proof, damn near. There are quite a few people with well over 100,000 miles on a Vic motor.
'14 Ness XC