[Rainyraven]

I see the CDV being one of are big enemys to fast shifts,
the clutch itself is not holding you back too much IMHO

Short throw shifter will help your shifting gears quicker..
removing the clutch delay valve will give you a quicker clutch ingaugement/disingaugement
So I'd start there, but lol nobody asked me

and I can't answer your question about finding a clutch for the koup
sorry