Hey, y'all. My car partner Dave and I received our mk 1 kit in August. We're having a blast solving little puzzles and fabricating parts where needed. We're using a Ford stroked small block and a Porsche 930 turbo trans. Our latest little issue is figuring out how to fit a water pump without it poking through the firewall. We found a so called "shorty" but are unsure what offset the pulley should have. We're going with a serpentine belt. We're prepared to put a "Gurney bump" in the firewall but would rather not if we don't need to. Any thoughts? Horace