well, good luck your going to have a nice bike in the end from the sound of it, all im saying is to be careful with an $80 ebay port job, it can have a bigger effect than you think, don't forget its a little single-cylinder air cooled motor, things really matter...
if it turnes out like crap ill count my losses and buy a new jug for what, like 30$ or something. im not to worried about it as parts are cheep... and if it is total garbage i would want my money back. all his feedback are good, everyone is happy with the porting.