Trying to shave some ounces off the total weight, so I decided to replace the leather case with this. Made of 300d ripstop. Copied the design of the leather case (6.15oz) and was able to save 5.15oz. New case only weighs 1oz.
The Wyoming saw itself is where the bulk of the weight is. I got rid of mine and bought a Bahco Laplander. It works just as well, doesn't need a case, and only weighs about 2-3 ounces, (guestimating)
But it does look like you did a good job on your project.