My DH gets the itchies from wool, & he'd like a lining in his kilt, as well. I'm thinking that a zipper designed for linings would be perfect for this. It comes long, but can be shortened by whip-stitching ovet the teeth at the point where the stop needs to be. A machine zigzag stitch set to a length of 0 will do the job, as well.

http://secure.cartsvr.net/catalogs/c...prodid=1674750
Lining Zippers
Zippers for zip-out lining.
Made of light weight aluminum.
Available in black, beige and brown.
84 inches in Length
Item No.DescriptionAmountQty.Black - 84" $3.75 Beige - 84" $3.75 Brown - 84" $3.75
Sherry