Mahle 24v Pistons

I have a used set of mahle .040 over pistons. They have been flycut .100" and have had the domes mild .050". They were roughly 15:1 CR . I ran them in my p pumped 24v for about 10,000 miles, if that. The only problem is that 2 of the pistons have a burn mark in the edges of the flycuts. These marks could be machined out by the right person. I was going to run them, but ended up going with a different piston all together. I would like to get $500 or best resonable offer on them. Would also be interested in trades. Looking mostly for ab s500, so lemme know what you got or shoot me an offer. Text 5082461554 or pm me. Thanks zach