You can get the porting, coolhead, carbs, and timing plate from Jeff at F.A.S.T. You can find a good set of pod filters on here as well if you keep an eye out.
If you want the Toomeys new order them from rmatv.com or again find ya a used set on here from someone. I think i seen some on here the other day.
If it was me that's what i would do but everybody has there ways of getting things.