Hi All

I am going to my girlfriends Vetinary Ball for Glasgow University. It is a black tie affair and ceilidh dance. I am going to wear my black watch kilt with a black Argyll vest and jacket. Along with black hose and wingtip shoes. Now I should wear a white white Tuxedo Shirt with a black bowtie since this is a formal affair right? Instead of a white dress shirt and black tie? Also my sporran is a very nice black leather one, it that ok to use or should I go for a dressier one?