Eric,
I hope you receive a full refund, that is no more than what you deserve. After looking over the photos I don't think he should be doing any more conversions. I would be ashamed to have anyone see my work if it looked like that. You may have caught a bit of luck though, I'm not sure you would want to shoot that gun put together that way. You might have lost more than just money if you had fired it much! Good Luck! Bob