Jeff, I will give you an A+ for persistance. I usually stop after pulling them down for the third time. I will move on to another project and come back to it later.
I don't think there is anything wrong with your cylinder. I see the normal witness marks, but the piston and cylinder look ok. You can hone these cylinders, but it has to be done very judiciously or you will grind through the plating. If you don't have a hone, a dowel rod with a piece of 200 grit sand paper inserted in a split on the end will work. You could also use a Scotchbrite pad. You just need deglaze that cylinder unless there are deposits that you can feel. If you have transfer, muriatic acid or oven cleaner will work.
Oven Cleaner I bet that would work ,I have heard of the acid treatment.Maybe it was you but someone told me to check the sqush tolerance.Using a piece of soldier,Put it in and angle towards where the wrist pin center of the piston would be becaues i used a homade gasket I cant emember but i think it was 20 or 25.000th what do you think