I did mine a couple years ago it was pretty cake. I did take the seat out and drop the collumn to make things easier on me (running speedo cable and such). To my knowledge, you can just throw a clutch pedal on, I believe the manual pedals are shifted in different positions to make room for the third pedal. You have to get some manual pedals to make the swap work. Make sure you get all the little stuff attached to the pedals such as cruise controll shut off for the clutch and stuff like that.
Tons of great post on the T5 shuffle, you shouldn't have any problems.