Awesome list!
a couple more for consideration:
How to make a DIY tarp http://gear-report.com/how-to-make-a...ock-tarp-myog/

How to make suspension triangles http://gear-report.com/how-to-make-d...riangles-myog/

Accessories: How to make a Peak bag http://gear-report.com/diy-self-clos...peak-bag-myog/