The last rearend I bought at a you-pick yard I paid $50 for complete drum to drum with a fairly recent brake job. I know it's been a couple years but their prices haven't gone up that much. Maybe that's the way to go. Of course, a 9-inch may not leap out at you right away, but unless you intend to pound the snot out of it most anything that's the right width and wheel bolt pattern should be fine. I think the drivability has pretty well been covered; it all depends what you're going to do the most in the car and what you expect from it.