expensive exhausts

I own an exhaust shop in central MN. I have done a few A bodies and B bodies. The drivers side tail pipe is time consuming because there isn't a lot of room next to the gas tank as mentioned in a previous post especially with 2.5" pipe. I don't use index cards, everything is custom bent. If people are paying $800 for dual exhaust then I need to raise my prices. I can usually do it for half that price.