Newbie to the forum, but I think you've asked a trick question ;-)
The transmission itself wouldn't have much effect on the clutch pedal,
That is basically a function of the clutch assembly, and the hydraulics between the master cylinder, plumbing, and slave cylinder, plus the distance of travel within the clutch springs working with the release fork.
MANY many variables...
If the replacement tranny is capable of using your current clutch setup, I doubt you'd feel any difference at all.
If you have to go with different slave (different diameter and length of throw), and the clutch is really heavy duty, Then there would be a pedal difference, weight for sure, maybe height and play.
Someone please correct me if I'm out of the ballpark.