Re: engine bearings source
Getting it trued up may be easy...if any does tear it apart here's how to "align" a pressed up crank pin.
SERIOUSLY- If you need to align the two flywheels, use a hammer. If you need to true them up for run out, use a hammer and a hardwood wedge.
If anyone is interested in more on this, look it up in the Harley Davison shop manuals.