Not that I expect the decision to be made on my opinion, alone, but I don't see the immutable necessity of replacing the pistons. Maybe I'm too cheap, or, maybe pistons are just getting too hard to get.
If it were I, I would emory the scuffed piston until the high spots were worked down, measuring as I go to be sure the diameter and ovality stay within spec. If there is a lathe available, wrapping the emory around a wide flat file and moving about evenly(and gently)should avoid ruining the profile. From what I am seeing, there is at least as much unscuffed surface as scuffed. Then, I would hone the cylinder myself with a common cylinder hone until the fit of the scuffed piston was correct.
If you do happen to go the new pistons and professional shop route, get the pistons and new rings first, so both can go with the barrels to the shop. I say this because of your statement "I will get the bores sorted out and pop in a set of new pistons."
As we say around here, just my 2p worth.
Richard L.