The big end came up well in the end. I had some initial problems with the increased thickness of the rod compared to the test piece. The boring bar wasn’t long enough to do a full pass, so I had to step bore until I could change to a larger tool.
The bore gauge Bob picked up from a local antique shop works really well, so I know that the big end is to size for pressing in the bearing. (Fingers crossed).
Onto the little end, rinse and repeat!