Thanks so much for your help.
I checked Bugpiper on EBay and he has a lot of great things, but I didn't see any woollen twill tape listed.

Ken, I was also thinking of contacting Robert MacDonald. I was very impressed by his work and his background.

Matt, I found this site that has worsted wool twill tape:
http://www.woodedhamlet.com/tapes_br...ted_twill.html
Thanks for sharing the site you found.

A couple of questions:
Is green the color that is always/usually used as the binding/top band for military kilts?
Is black or navy or forest green ever used?
I'm guessing that 1 1/2" wide would be the best, as compared with 7/8" or less. Yes?
Does the twill have to be wool or is cotton okay?

A few years ago, I used green grosgrain ribbon because I couldn't find a source for green wool twill tape. I know it's not proper or correct, but it worked.