elijah, I'll pick up a couple of super cheap stainless steel .6 liter pots today before they vanish from chinatown. It looks like that minimalist pot is .6 liter, same rough size. I want to see how that compares re weight and cooking, the sets I was using are 750ml and 900ml.
These have full handles, which I cut off and replaced with ti wire folding handles, which are a pain to make, but they weigh less than yours and have a real lid.
I was debating picking up a few, I think I will just to have them around.
the gsi thing is a nice place to start though, don't stress too much about weight, just because people here do doesn't mean you need to, there is really no difference between 2, 3 pounds extra baseweight in the real world, it's more a game people here play because it's fun and sort of a challenge, not unlike the tarp you created in school (obviously, however, you would drop the weight hugely and increase water resistance massively in that design by using standard glad bag sandwich bags, cut open, but that's another issue for another thread...).
I didn't make my ul on a shoestring cookset because I needed it, though it is very cool, I made it because it was a fun project, a distraction from boring real world work stuff, not unlike trying to distract yourself from boring school stuff, that is.