Crankworks is the best billet out there in my opinion, I've just seen too many twister fail and only seen one CW fail. You could go forged but you said money isn't a concern so go billet for the extra 6 hundo. I would also go LED pipes even if they don't have the highest output,they just look incredibly awesome. If it was mine I would go 41 pwk they will give you more for up top wide open riding . Do the billet bowls that fast has now so you can get to the pilot n main rite through the drain plug.