The other factor is do i really need a complete rebuild or maybe it just needs a good going though. Like new rings, cam, lifters and a valve job??
once you get into what is involved in doing rings you are pretty much in for a Complete rebuild.
Is the engine currently in the car the original engine ?
Also as sad if you are going to change out to roller rockers, not really needed but they sound cool, stay away from any of the cheap Chinese junk rockers.