color: copper with a black frame
light: HID
brakes: SS lines, radial M/C, some kind of monobloc calipers(are the nissen's on the bking a monobloc?), maybe some wave rotors.
suspension: fully adjustable front high/low speed(maybe even the new big piston fork found on the 09 1k). some kind of upgraded rear shock also fully adjustable.
engine: maybe a nice 4-1 exhaust with a good tune for power and emissions( I dont think the busa really needs more power)
tires: sticky, doesnt the Bking come with Qualifier's from the factory. those will do.
I think Suzuki can build this bike with some off the shelf parts, which would upgrade the performance of the bike and still keep price down.