Alright so here's what I've ended up deciding to get (I'll be buying them tomorrow):
(same as above)
I also found this guide
and plan to follow it.
I'm planning to buy the gaskets and hardware kits from that guy and replace them all on the engine (as well as a new NGK spark plug, new plug wires, and new kill switch).
Now after doing some research on here, it looks like the bike is a really good one for motorizing, however I've heard that I need to remove the fenders (or reinforce them), get a new rack for carrying heavier things, upgrade the brakes, and move the shift handle over to the left handlebar.
Is that everything? Where can I get a new rack and new brakes?