I have the 1700 cams (so far as I know they are the same cams as the BB kit) in my 1600 motor.
what I observed when I asked the dealer if they could get the parts was: they pulled up a screen (on the parts computer) that had the BB kit with part numbers. the parts numbers for the cams and the clutch springs where taken down and ordered. I will have to look but I must have a copy of the quote somewhere, it may have the part numbers on it.
I do have the original 1600 cams wrapped up in the packaging the 1700s came in (I assume they are the same as what is now in the bike)
When I get home I will try to see if I can locate those pn's. that will provide 2 out of the (maybe) 3 options here.