The OEM TC/B floorboards are interchangeable only If you have the footpegs type shown in this image.
This is my TC, where I swapped in the R18
B footpegs for my floorboards, also got springs, bushes, pins and clips.
View attachment 10399
If you have the round footpegs, then you'd require the boards, the base mounts, the kickstand, clips, springs, bushes, pins, and heel shifter if preferred.
The floorboards are not compatible with the mounts for the round footpegs.
It's when the mounts change that the stop point for the kickstand is altered, (possibly something simple could be fabricated to provide the stop for the original kickstand but I have not considered that aspect).
Folks on the forum have posted some great ideas if you realize afterwards the need to change shifter and brake pedals to meet your preference with floorboards.
Hope this is helpful