I can get us a Group Buy on Rotora BBK and rotors. The pricing on the BBK will be $100-$150 over Jobber price.
Approx. $2400 on two piece 6 piston and approx. $3250 on two piece 8 piston.

Heres Rotor pricing. Let me know.

2005 Ford Mustang rotors (OEM Size)
Blanks - $172.00 (Front set) $120.00 (Rear set)
Retail - $204.00 (Front set) $160.00 (Rear set)

Slotted - $236.00 (Front set) $192.00 (Rear set)
Retail - $290.00 (Front set) $230.00 (Rear set)

Drilled & Slotted - $266.00 (Front set) $224.00 (Rear set)
Retail - $330.00 (Front set) $270.00 (Rear set)

 

Pricing doesn't sound good. Look at this PDF from Rotora and tell me what I'm missing.

 

Oops I didn't realize the PDF was showing prices for single rotors. So the price does look good for them. The BBK doesn't sound like much of a discount though.