If it's running good and the head gaskets aren't leaking, I'd leave the long block together, especially since you just got the rings to seat. Just replace the gaskets and seals that are leaking and run it. Check the timing chain while you have the front cover off; if it's not loose, leave it be. I'd save the rebuild for when it develops a real problem. If you're really concerned, get a second motor and rebuild it.Wife drove it hard enough that the rings are finally seated... Debating if I should just knock it apart and do a bread hone and a quick and cheep rebuild while I'm at it.