I believe that a properly fitted shirt, and raising the kilt up about two inches will straighten out most of the issues. Ideally for white/black tie events the cuff of the shirt should protrude just far enough for the cuff link to be visible. BTW, congratulations on losing three sizes. The kilt hem should rest at the top of the knee and the kilt hose should just make the top of the calf. A white tie and vest without the belt fills out the kit. A well shined pair of brogues is ideal. The day sporran can do for the occasion if there are not a lot of kilt educated people there.

That said, I have attended a few white tie functions where the students showed up with the best kit they could get their hands on, and as most of us had been there, we congratulated them on doing well with the "tools" at hand.

For some pics on kilted style see the "one kilt, ten looks" thread where Panache and McMurdo demonstrate all the possibilities when wearing the kilt.

Be kilted, be proud.

Steve