Well, I took the clutch back today and had good luck. The guy that helped me yesterday asked an old timer there if they had a #35 chain clutch instead of the #40 and he said yes! It's a 12T and it was $25 instead of the $57 I paid for the other one! After that I decided to stop by the pawn shop down the street just to see if they might have a 6.5hp motor. I looked around and didn't see anything. A guy that worked there asked me if he could help and I told him I was looking for a 6.5hp motor. They happened to have a go kart in the back with a 6.5hp 66015-0VGA greyhound clone from HF that didn't look that old. It's still shiny. They want $160 for the kart w/engine. They didn't want to part it out. I asked him if he would do a trade the stock 2.5hp engine and weed eater plus cash, and he said he probably would. Even better, I was telling a buddy at work about it and he said he would buy the kart frame from me
Hopefully the engine is good.
Oh another thing I found out yesterday is that Martin Sprocket has a manufacturing plant here where I live and they sell them in town, so I will have easy access to those as well
I might have to start me a little mini bike performance shop since I can get a lot of the parts local