i think a good aggresive dune port will cost you around 300-350 and thats if you are interested in getting the pistons cut as well.save your money on the vf3's and just have your stock reed cages ported unless you have the money for the vf3's.as for the cool head i would just get your stock head cc to get the compression you want.which i believe that is around $110.just check around.don't be afraid to call around and ask some builders.i know kevin can port cylinders to whatever pipes you have,which any good builder can.