I DON'T KNOW, but here is my 2cents. The 6 inch sheaths would probably work, but would be a sloppy, loose fit. You could MAYBE get a kydex liner specially made for it though.
On a Leather sheath note, the used to be a guy "over the pond" that made really nice holsters, operated under "Horseshoe leather" I think. You might look him up on the interweeb and who knows, he might be just down the road from you.
BTW,WELCOME TO THE YARD! CB Since you've been lurking for a while you know how it operates. glad you joined, now that you are a member, join right in amongst us, grab a bone and get ready to gnaw a while.