I have an STG58 on an Imbel receiver. It was purchased 20 years ago. It will fire the first round but not cycle another round into the chamber. Ultimately I have a single shot rifle. A buddy of mine tinkered with it for 9 years but it still will not cycle. Its an inch pattern and numerous parts have been swapped out. Anyone have any ideas or interested in trying to repair for a reasonable price. I'm in East Point.