Working on a 2000 6.0 LS swap into my 1979 GMC 1/2 ton 4x4. All of my searches are returning posts from years ago, hoping for updated information. Sm 465 manual tranny, gear t case.... Is there a reasonably priced header out there that fits with minimal fab? Would really prefer long tube style without breaking my budget too bad. Any help appreciated as this is my first LS swap.