slant six rebuild parts source??

Im weighing the pros and cons because I could just buy the entire rebuild kit for the slant, get it rebuilt and add a cam in with the process and swap to a better intake/exhaust manifold setup and a 2 or 4 barrel carb and still have all that extra money for suspension and brakes. I can do all that while still not hitting ne where near the budget for the hemi swap. One thing about the kanter kit is it doesn't seem to come with a water pump. Id be trying to go with their deluxe kit seeing as it has the most items in it for a complete overhaul. Where is the best lead to go for aftermarket intakes/headers for the slants?