Yeah just getting a set of heads for free can be a death sentence for your bank account. By the time you port them, and build the rest of the package around them so you can take advantage of how they work, it can get a little expensive. If I remember correctly we have about 9k into our build....and that started with a set of $800 used heads that were on an ARCA car out of michigan. Not a huge amount in this arena, but pretty good for our standards.