Changing the CV boots is not really fun, but it really isn't as bad as it would seem.  Chances are you'll have to do this at least once, and probably several times if you have the torsion bars cranked for lift.  This is a response I posted on ITOG and the Isuzu 4x4 mailing list a while back.  

I have finally gotten around to writing this procedure up and I took plenty of pictures of it.  For the detailed process, see my article on the www.4x4wire.com Isuzu pages.