I would agree. It would have to be a Rim specific reason for doing this.... However, if you still feel the need for LBP and you have a donor car then it is a no-brainer. Use the Donor parts and chances are you will be replacing Calipers anyway. I have driven a bunch of version and the late model stuff will work fine...
The flip side is you can sell your KH setup if you include everything for a decent amount of money...