Am I getting ripped off?

[64Magoo]

I just bought a lowering kit from performanceonline.com and I got 3" drop springs in front and 5" in back, hardware, front and rear sway bars, trac bar, and 4 drop shocks. I don't want to install this stuff under a car port so I took it to a couple shops around town. I also want my hooker headers installed but they require the zbar to be modified. This shop just did a '67 Chevy and had to do the zbar mod so they know how. They said that they would install everything, do an H-pipe and turndowns (i have two cherry bombs and just want to dump it behind the cab) and align it for $800. Should I be able to get all this work done for less?