The most accurate solution would be to fabricate a stepped bushing that centers in the larger, accurately machined diameter and steps down to fit into the rough bored area without actually contacting the crankshaft. I doubt that anyone but a machinist would be willing to go to that amount of effort or expense.
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!