Some of my thoughts:

Sleeping bag at 25oz and 45F: Kelty’s 650 down bag (Light Year 45) is 30oz. It barely keeps me warm at 45. I doubt synthetic will do better. It looks like it will keep me warm down to 60F.

UV light takes 80 seconds for 1L. This is typical, but I thought they could be bought cheaper elsewhere.

Survival straw: From their specs on package “Removes other pathogens and contaminants down to 2 microns” I would pick something 10x better.