How the clutch is actuated would have nothing to do with the transmission swap. My understanding is that the clutch gear is longer on the T5 and has a different spline so those issues will have to be dealt with. Also, the swap will require a driveshaft modification to include the appropriate front yoke.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine