I used Gardner on the 65GS which was roughly $1000 at the time for correct everything for stock manifolds. Clamps,hangars,complete with correct bent exhaust and factory dump tail pipes. This was roughly a few hundred more than the local muffler shop. I am currently working on a 65 Impala SS that I also want correct. Eric will not list prices because he puts together your request as far as mufflers,resonators,or different options your car may have had. I agree with you that he should just list individual pieces and prices would be more readily available. The good news is that he will send you a quote or call you back after figuring your options. If I was doing a hot rod type resto?.it probably is not justifiable using their system with headers and non oem parts. I do believe anyone would be happy if just trying to put it back to the way it came from factory.