I've been in to my dealer and done a bit of swapping about
Option 1 - Replacing T100 pegs and brackets with Thruxton pegs and brackets - can't be done - Mounting brackets are different
Option 2 - Replacing T100 pegs with Thruxton pegs from the pivot pin - can't be done Thruxton pegs are different in one dimension and the "stop" design to prevent the peg from swinging past the horizontal is different
you're going to have the same problem in reverse pwillie
Option 3 - replacing T100 pegs with America pegs - can be done as a straight swap from the pivot pin - BUT the T100 pegs are cranked forward slightly just outboard of the pivot pin so the America pegs will bring your foot back away from the gear and brake pedals - I've only got size 8 feet so it's not going to work for me - ho hum
saved myself 90 quid though :-)