I’ve no strong opinions about foil thickness or the debates surrounding it, but if I were to only keep one pot, and I wasn’t concerned about melting snow, it would be my Toaks 900ml. For your parameters, it would then be the Toaks 750ml.
I’ve found it to hit a sweet spot in value, durability, volume, and weight.
Toaks offers a 550ml UL version mug that’s roughly an ounce lighter than their standard 550ml mug. I own one and would feel comfortable putting it on some coals, although I’ve never tried due to its low volume and boil over.
I’ve owned both Toaks and Evernew pots, and found for my purposes, that Toaks was every bit as good but at a better price point.