Well if you are going to run the original brake setup then this must be a bargain at th current price.
When I overhauled my 1200 discs I also replaced the master cylinder, the rear wheel cylinders [not included in this offering, but they were inexpensive] one only new stock rotor, one set of pads & overhauled the calipers. The price came somewhere near this but the finished product sure as hell can't match this fpr appearance or performance.

I wonder if it could be duplicated for the "buy it now" price.

For a stock or even hopped up 1200 this should be just fine.