I want to build another bike from the ground up i plan on buying a blown up banshee and scrapping everything in the motor crank tranny ect.. i was thinking 10mill 7???mm bore. i am going to do all the frame work with the help of a couple friends. what size motor should i build? i am planning on spending 4500 up front then spending more over next winter so i have a decent amount of cash for this build and am in no hurry to throw it together. i just want a badass duner that could possibly scare the ballsack off of me.