Who else is talking about resizing main and cam bearings? Those are precision-fit replaceable items. If the main saddles need line-boring that's way beyond a normal overhaul. I have line-bored several 216/235 engines with a single pass- - -just set up a different cutter for each bore and cut them all at once. Any machinist worthy of the name can do that.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!