Well man, the controls (switch housing) on the 02 and 03 Adventures are the same! The difference is the clutch perch!
So, I think what you would need would be the Magura Hyd. clutch mod with a stock perch from an 03 Adv.R.......Which could get pricey! Or you could modify or change your controls to the Euro switch (which is an extensive mod in itself)!
Anyway Bro, hope this helps! Its EARLY
I got the Akropovic Titan exhuast put on and after monkey'in with the carb for a week I finally got my 03 back together! At least enough for a quick ride around the 14 acre field next to our shop and WOW
its a totally different bike!!! I will try to post some pics this afternoon!