Hey 63galaxie. (You must be a Ford guy. I'm into Impalas, but I love the 60's full size sleds.)
Anyway, I digress. Glad to see you conquered the stuckness. Always a good feeling when the sliding finally happens.
I have used Milennium and had very good results on very damaged cylinders. Yours does not look too bad other than scoring. Might only require honing and replating depending on the depth of the scores (if too deep they need to be welded).
Good luck the rest of the way.
...bert