I would still take the head apart and check to see if it was really "rebuilt" or if it just had new valve stem seals installed. They can hide worn guides for a while. Also, if the exhaust valves weren't replaced, that is a must. They fatigue from the high heat. Regrinding the intakes are exceptable. I wouldn't have anyone touch the crank, I dont know of oversize main bearings (at least not that I have seen). Everything else you said sounds good. I would replace the oil pump no matter what. With the super long pickup tube, having a pump that is as close to new as possible will help it pick up quicker.
Jason
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