Not much anything wrong with what you have but if you want to go lighter Eventually I would…
Get a lighter pack, like a Miraposa or the like. There are some SUL frame packs out there in the same weight range. I am building a cuben/frame pack that will weigh about 14 oz.
That will save a pound or so.
You can do a complete alcohol/bag crushproof cookset with everything but alcohol in 5.5 oz and its cheap, like under $20. If you must have a frypan the tfal one egg wonder has real non stick coating and is thick alum and weighs 3.5 oz.
Did not see a gas bottle for the pocket rocket.
4 oz gas bottle weighs around 8oz full I think.
If you carry the pocket rocket in the protective plastic cover the complete
stove with bottle empty is 8oz.
Not bad but its still half a pound.
You can build a 1.25oz tyvek 8 oz total weight bivy for about $30-40.
You need a ground cloth of some sort. Frostking film is SUL. The sliding glass door kit will make 2.
I do understand the water pump and I carry one at times but if you do it right you dont have to wait 30 minutes with a frontier pro.
Skip the towel and get a Libman or similar microfiber dish cloth from publix.
Wear the multitool on your belt or just carry a lighter knife. I dont add that equipment into my pack weight since I mostly carry a swiss army knife with a saw in my pocket. I carry some of my survival gear in my pocket too. Its very small.
Get something lighter than a themobak.
19 oz is way to heavy to carry 3L of H20 hot or not.
You can do lighter insulation if you need to. All sorts of cheap
ways to do that.
Blast match is a good tool, but I mostly carry a micro striker rod in my pocket.
Smaller and lighter. Its part of my pocket survival kit.
Weber fire starters from Ace are the same as wet fire and they are cheap, and if you shave them they will catch a spark and will burn wet like floating on top of water.
A cube weighs about 11 grams and will boil 2 cups of H20 but it will smoke your pot.
I shave them down and repackage a few into a sealed small tubular containers. You have to keep them sealed. They are non toxic.
All that should save you about 4#.