Very nice, Bill.
It's a Salampasu sword, that's sure. My guess is, that they probably used a good blade from another tribe. Like Luc said, the problem is to find which one.
I like these variations. Salampasu swords aren't rare, that's for sure. But the one you have.... Just try to find a second one. I don't think it would be easy.
Look at the following picture : both Salampasu, no ?
I'll show the rest tomorrow. Have to go to work.