And another update. Not armor, but part of the outfit. Juliet76 put out a very nice set of blueprints for various Reach weapons (link here:
http://www.405th.com/showthread.php/18541-Juliet76's-Blueprints), including this knife. Tonight, I used those blueprints to model this and brought it into pep, unfolded it and built it. It actually went together a lot easier than I had anticipated...
Here it is next to the sheath I built from foam core...
.... Thanks again everyone for the compliments and comments. I love getting feedback on my work, so let me know what you think.