Agreed, the skirt is just a big rectangle. Cut it as wide as you like. The fairy tale skirt isn’t even that full. For finer fabrics, I like to cut it even wider. If you have 58″ fabric, just tear one strip all the way across.
Honestly, @sarvi, the French seams in the sleeves aren’t any more fiddly than a 1/2″ seam. Actually, it’s easier to set a sleeve with a smaller allowance. Then you flip and turn. Binding is actually bulkier than Frenching, and even fiddlier.
Now, the tulip sleeve are bulkier because of the overlap and the lining, so you’re dealing with 4 layers instead of 3. It may not work. I sometimes don’t line the sleeve and instead finish with a baby hem. I also very often draft a short or cap sleeve for this one.