Mattia,
Hello and a warm from Boston, Massachusetts U.S.A.

My first call would be to ask the wedding partners if they have a preference of tartan. Second is to then work on the kit. Be sure to measure VERY carefully. As soon as you get your kilt -WEAR IT! Become familiar with how to put it all on, then how to sweep and sit, arising and settling the pleats. Practice wearing it so as to be fully comfortable in it. The kilt should soon be a very comfortable way to be. Most of us on X-Marks try to stay kilted as much as possible. My avatar is the way I dress for church every Sunday here in the U.S.. The kilt is making a grand surge in popularity here.

Enjoy ye Rabble