I just wanted to pass this on for any others interested. I love my RSK MK3. I found someone willing to put together a kydex sheath to my specifications.

http://www.stssheaths.com/

Shawn is a great craftsman. He took my description and made it a reality. I sent the knife to him, and he created a custom fit, exactly as I pictured it.

I recommend him to anyone who wants a custom sheath for any knife.