the running board leg mounts will work but i redesigned the frame side to work better with both generations of truck and will make the kit changes for the later trucks and just use this design going forward.
the core mounts totally differently than the 47-55.1 though so there was no opportunity to reuse, so i designed a 100% bolt on core mount setup that will still fit in flat rate boxes for shipping on the cheap.
this was the last piece of design work, the bumper mounts work and so do the bed mounts, so once i proof the core mounts (spoiler: the design was mocked up on the truck already so should be fine) i can assemble the truck and put the column and pedals in and on the road it goes. well on the trailer.