And if you can't get one of the right size at either WPG or E-bay I might suggest you contact John at Keltoi. He makes military kilts in both the modern style, buckles, black tape at the top, 4 inch rise and older style with green tape at the top, 4 inch rise and 2 cloth ties on the right in place of the buckles.
He is making one of the older style for me that I hope to have in my possession by the middle of October.
proud U.S. Navy vet
Creag ab Sgairbh