Look at the pic in the link. You can see where the back of the rotor comes very close to the mounting bracket. It should be easy to figure how much material needs removed.
I have looked into this before, IIRC it uses GM calipers. For the price shown it likely has no parking brakes. Parking brake calipers are a $180 upcharge from the standard caliper.
http://www.tsmmfg.com/2552.htm