Edit: Some of you get this. But most of you miss the spirit of this post. It's not that I'm asking where to get weapon upgrades. Great list though, Gijira. And there are suggestions for using strength weapons and using daggers. Ok. But these are not optimal. This rant started because I just learned to make the Reborn weapons on my BS only to be severely disappointed that there is nothing optimal for my Shaman.
The point is that Blaksmiths can craft 16 weapons (or 28 if you want to count the upgradeable levels of the Reborn weapons) and there are 16 ,if I'm not mistaken, of the Lost and Found weapons. Enhancement Shaman have been totally ignored.