yz250 motor in blaster

I'm thinking about swapping a yz250 motor into my blaster..... Does anyone have a diy written out on how to do this... I know the motor will fit in and that some mounts have to be cut and welded just don't know which ones.... if anyone has a diagram or a write up it would be appreciated.... If any one has done this i would love to hear some reviews on how you like it....