I found a Benjamin 362 22 cal Co2 carbine at a flea market yesterday. However it needs a bit of TLC. The front barrel spacer had come undone from the bottom tube, the safety lever had broken, and, most importantly, the Co2 piercing mechanism had been disassembled, and put together incorrectly. Anybody know where I can send it to have it repaired, and possibly have it converted to use 12 gram cartridges? I don't have the workspace or the tools to do it correctly, and I want it done right.