Can you post pictures of the bores and the damaged bore? From your first post it sounded like the 40 over bore had ridges at the top?

Maybe if the bores are not too bad the they could be rehoned and use the same pistons with new rings. If the damage is down low it may not effect how it runs.

I have done a half a dozen stock rebuilds with a hone job only and all of them ran for many more miles after my re ring and new bearings.

One motor had a gouged cylinder down low that I re used after just a hone. The cylinder sealed up fine and I even did a compression check on it years later and it was still good. We used that engine in a company van, 79 360 dodge van. Ran it 100K miles after a re ring job. Van had 200K + miles on it.
I always used moly rings, they are "soft?" and seal up easier than most others, good for re ring jobs and stock rebuilds.