certainly an engine building procedure that must be done correctly! my '32 B engine has fresh new babbit bearings. once installed into the block and caps... the engine shop line bored it on original FOMOCO tooling/rig... and the operator was an old gent who did that very job on that exact tooling for FOMOCO back the the early days! I found the engine whilst up in CO on a ski trip. cook's tour of shop and saw their line boring set up. another engine was being readied....
like honing a cyl... often best final fit bore/piston is done by an operator that is also a machinist or has that background. if your situation was mine, i would begin calling as many engine shops as i could find and would be willing to travel to wherever it might be located, hopefully close or within ur state.
for me, i have honed more than just a couple of engines... 600 grit and gasoline... reline bored engine with crank and rod bearing brass shim stock (.007) with excellent results! ...
and while never had to... always heard some bacon rinds well placed could get a Model A a few more miles!
i goggled babitt bearing services for NC. there were a handful of links that came up.
good luck with your engine building project.