Nope, -'99 750 calipers do not fit. Different mounting hole distance. The ones that will fit are '01-'03 600s, '00-03 750s (4-piston) and '01-'02 1000s (6-piston).
As for rotors, '97-'03 600s, '96-'03 750s, '01-'02 1000s, all TL1000S/Rs and all Hayabusas have the exact same ones - except for carrier color
While you're at it, get some stainless steel braided brake lines and raise the bike back up to stock height so it will handle properly