A few years ago I ordered a few United sheaths from Smoky Mountain; they fit my Team Geminis well, and I think they will work for the B-8's until I make leather pants for them.
You should (If you haven't already) take a look at the Spec-Ops leather long sheaths. Might give you some ideas.
If you’re not Paranoid, You’re not paying attention Be a Sheepdog JYD#105
