Russ gets behind with emails I've found, but talking to him on the phone seems to get the job done pretty well. I think he's old school like that. I've talked to him about needing a small part before, he said send him an email to confirm with my address (which I did) and he didn't reply. I waited a few days then called. He wasn't there and I left a message. The FedEx guy showed up with the part right before he called me back lol.
There is nothing super special about putting our motors together as long as the specs are adhered to and checked. Tolerances are relativity large compared to high hp/rpm race motors. I paid a ricer race shop way too much money to magnaflux, blueprint, line bore, torque plate bore, and spin balance my motor in addition to the standard assembly bearing clearance & end play checks. Will it matter? Probably not. It gives me a warm fuzzy though. Because race car.