Big bore flat top pistons

I have a very nicely done 61x bog bore cylinder. Its set up for flat top pistons and currently at 86mm. I was told cpt did the work.

It has wiseco 9664m pistons. The bores are good, pistons look good but one has a damaged skirt from being dropped at one point it looks like. What are my options for new pistons/ rings for 86mm flat tops? I seem to remember something about kawi pistons back in the day but its been so long i dont remmeber the BB motor in and outs.

Maybe its not worth putting effort into but the porting is some if the best ive seen it would be a shame to scrap it
 
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