The Alternator swap isn't too ahrd from What I've been reading. Mainly just a newer wire to battery and then an exciter and ignition wire if I'm reading this stuff correctly.
CVF racing makes an awesome billet aluminum backet for the alt. I ahve one and it is really nice, it also adds a few heim joints to the lower mount so you can actually tighten up the belt.
Heres a picture of my engine before I added the Monte Carlo Bar.
, on Flickr