Welcome to the Yard, Ironman.
Rainwalker is our go-to guy for quality sheaths.
http://rainwalker15.googlepages.com/index.html. But he has a long waiting list.
For a faster return you can go to Chuddy Bear. I like his work to.
http://www.chuddybearleather.com/. According to his site the wait time is five to six weeks.