IMHO there is nothing at all, wrong with a spacer lift,, I ran spacers on my 4runner for about 4 years, and wheeled the piss out of it, they are cheaply priced for the lift you need for larger tires.
If you`re not going to wheel it hard, Id leave it.
As far as the CVs, many times you put a lift on a rig, it will pull at the CV boots, leaking grease, and some would rather replace the whole CV, being it may seem to be just easier. but thats another thread, lol