I've got no spacers on my k-sport kit and its no hassle whatsoever, not sure where you get that information from?
If anyone ever gets K-sport brakes, try to order the 6 pot unit rather than an 8 pot unit as they are much more bulky that the 6 pots and pad size isn't much more.
I had the 8-pot units on order once upon a time in the GB. After much confusion and total lack of information (despite e-mail communication) it was finally found out the 8-pots wouldnt fit with my setup without spacers, when I had previously been assured they wouldnt need spacers. To top it all off, after cancelling the order due to them not being as described I was then charged for buying the brakes out of nowhere!
As for the 6 pots I cant comment and I obviously have never used them nor tried to fit them, but my comment referred to the 8-pots and was not pulled from thin air ;-), although I maybe should have clarified things more.