A guy at work that recently transferred into my department brought me a 10 gallon Challenger VI pin lock keg this morning. It's scratched up on the outside and has some gunk in the bottom on the inside, but I'm going to do my best to clean it up. All the parts are intact except the rubber O-ring for the lid. I will order a conversion kit to convert it to ball lock and an O-ring kit I should be good to go! After that, I will have to brew 10 gallon batches, lol. And he wouldn't take any money for it and said he had no use for it.