studville

The shop I was at a while back stripped out my pan, so now my drain plug just spins. I didn't find it out until months later. Anyhow, I bought a Fumoto valve to alleviate the problem but just don't know anything about helicoils. Where do I get the kit and what size?

(PS I know a longer bolt would cheaply solve the problem, but I'm I'm assuming it eventually would just get stripped out by a jiffy lube guy once again).