I just noticed that Cometic has engine gaskets for 2 stroke GG engines. They split them into a top end kit and bottom end kit.
http://www.shopengineparts.com/parts...Up)&type=model
Priced together they are about 20% less expensive than the GG overall engine kit but most of the time I don't need the whole kit. Additionally you can buy them individually.
http://www.shopengineparts.com/parts...Up)&type=model
I don't know for sure yet, but I am willing to bet they don't charge $15 to ship an O ring.