There is no such thing, truly as a kilt "pattern". Ther' sno point, it's a big strip of cloth folded up in pleats in the back and overlapping in the front. There's not a lot to cut out in special shapes, eh?

If you want a contemporary kilt, the X-Kilt instructions are pretty easy to understand and I think about 20-25 of them have been made. you can come to the forum and ask questions and you'll have the xperience of a bunch of makers to draw upon.....built in tech support! Follow that link and try it, if you think a box-pleat will work for you.

If you ever want to make a traditional kilt, then Barb's book is THE Schniznit....you gotta own it.