I used to wear a sporran with my UKs, I guess just because I wasn't secure enough not feel obliged to tag such a kilt as a Scottish item- but since I have a Survivor model with the major pockets, it got to feeling a little silly and I discontinued the sporran, which anyway was a little too dressy. I can't imagine how a clan patch would look on a UK, but you are on new ground there- perhaps you can set a trend.

Do you have a way you can post photos of possible setups with the kilt and the patch? I'm quite curious.