well I was speaking with Eric today and he told me that its the worse seizure he has seen on a KX500 lol. To make a long story short he recommended an over sized sleeve and thats the route I'm going. My KX250 was sleeved and I diden't have a hitch, so I'll let ya know how it works out
I'm still going to keep an eye out for another cylinder, but I'm still weary about buying one off ebay.