I wouldn't recommend c/f rotors for the road, not enough feel and they need a lot of heat to work properly.
Similarly the Aluminium ones may struggle and warp with such a heavy bike - and wear would be a problem.
I've ordered what I believe is the best solution/value for money, PFM (Performance Friction Materials) Ductile Iron Rotor set, £400 but I'm sure they'd be far cheaper in the US more like $400 even though they are made in England!
The Ductile Iron Rotors are supposed to take heat away from the pad faster than any other material, reducing/illiminating what is the Busa's worst problem. boiled fluid.
Of course if you are feeling flush you could opt for the full kit, ductile Iron rotor + AP Racing six pot billit calipers ($999US) the ultimate!