you need to do some research before yu go buying all this... theres alot more to getting power then tossing a bigger motor in the frame and going... depending on what type of riding your doning will determine what motor and porting, pipes carb suspension... everything...
once you start adding power you need to upgrade your clutch and suspension if you have not done it already... if your "guy" has told you this is the way to go... id say find a new guy to do business with! he should be filling you in more then just selling you shit. you need the whole packge... the parts, the knolwedge, the understanding.... if he isnt providing you with those things ... he doesnt have your best interest in mind, he simply has your wallet in his mind