supercharger

So, i recently acquired a Tdrpro 125 pitty and the rings and piston are gone, and for the life of me I can't find a rebuild kit for it anywhere!! Need to find one asap as I'm swapping it for a supercharger for my car which isn't waiting around. Please guys, help a bro out.

So it looks like my 125 lifan is going to be in the bike for a while as I get other motors sorted out. A new smaller flywheel is already on the cards. What else can I do to get it running a little faster without being to crazy spending a ton of money? Links would also be nice as I just got the...