The prices are right. Especially if the y-pipe to manifold studs break while removing the y-pipe.
There's no telling that they'll have it done in one day for you though. You might be better off paying the more experienced/expensive shop or doing it yourself. You don't want the guy to get 6 hours into and start getting ******. The only things that'll rain on your parade are those manifold studs. After that, the rest isn't too bad.
The level of skill needed to swap a rack is on par with the level of skill needed to swap a subframe. If you can swap a subframe efficiently, don't pay to have the rack swapped.
Having said that, I did NOT remove the subframe when I did my rack a couple months ago. It would have made the rack install easier, but the job would have taken quite a bit more time. I just lowered the rear of the subframe with the engine disconnected at the subframe mount points and supported by the rear exhaust manifold. This uses the weight of the engine to your advantage. The front engine mount will remain in contact with the subframe as you lower it by backing out the rear subframe bolts and at the same time, the weight of the engine pushing down on the front mounting location will make the engine and subframe open up like a clam in the back, allowing relatively easy access to everything you need.
The two things you'll want to tackle first are the exhaust manifold to y-pipe nuts and the steering column to rack slip joint. If you can get those without much trouble, the rest is pretty easy.
