That is quite a well written and informative webpage you have there. Greate job ... thanks!

Only one thing caught my eye on first quick reading. Your recommended Spectra cord. While that stuff is great - I use it for my kite flying - I don't know how you manage to tie knots in it for routine tasks. This stuff's claim to fame (in the kite flying world) is that it's so slippery that you can wrap your lines over themselves many many many times and they still slide easily to let you control your kite. (That, and it has very little stretch - for quicker response when flying.) Unfortunately "slide easily" implies "doesn't hold a knot worth a damn". We sleeve Spectra line to tie knots with it ("sleeve" meaning add an extra outer wrap - like the outside layer of paracord is the sleeve for the inner strands).

I use kite line in my survival kit. But not the Spectra stuff. I use "braided dacron". Here's where I get my braided dacron:

http://www.intothewind.com/shop/Line_and_Accessories/Bulk_Line_and_Reels_for_Traditional_Kites

Luckily the brick-n-morter IntoTheWind store is right down the road from my place, but I'm sure they're good mailorder too. Scroll down the page for the heavier weight lines.

Of course they have the Spectra line too:

http://www.intothewind.com/shop/Line_and_Accessories/Stunt_Kite_Line_Handles

... and you can also get your sleeving from them.