We do not purchase a "kit".:no: We buy only OEM/NOS parts, separately, generally off of EBay. You can get some great deals if you shop around! Tip: Make offers to EBay sellers- We buy in volume and ask them to combine shipping (most will). The Ruppster is correct about "aftermarket" parts, especially the gaskets which are generally thinner (sometimes MUCH thinner) than OEM, which translates into a leak in our experience.
Michael