troy you may be very well qualified to do engine assembly but it's amazing how many others think they can, and all they do is push brgs in, add a dob of oil, drop the crank in and torque to specs without using inside & outside mic's to check clearances, without checking endfloat, without checking for brg crush and even chipping the edges off scraper & segmental oil rings while pushing them into the bores. Just because the crank's been ground doesn't mean you don't still check everything.......9 times out of 10 main tunnels don't need line boring unless a brg has turned or been hammered.........that's why we do all the above checks.
Hence why it's a good idea to get the engine reconditioner to also assemble unless your a qualified mechanic or engine reconditioner IMO, so +1 dangerman4