That’s funny you put the Protec Orb Mini in there. I just saw that itty bitty foot massager yesterday at my local running shop and the first thing I thought was, “That would be perfect for fastpacking!” Haha definitely a “luxury item” though. Unless you have painful scar tissue problems, is it really necessary to bring along for these short trips? Maybe instead promise yourself some extra foam rolling time when you get home!
The shelter/poncho idea is definitely versatile. I did that for two overnighters with the Sea-To-Summit equivalent (only used it as a ground sheet one night and as a shelter another night; only wind, no rain), and I found I preferred a bivy. After running all day with a pack, the last thing I want to do is hunt for a sleeping spot where my stakes will work and then actually set up the shelter. Having said that, a shelter is nicer than a waterproof bivy in the rain because you can change into dryer clothes more easily underneath it…unless your bivy has excess room and you are super flexible. However, if it’s raining and you’re wearing your poncho, will you have to get wet in order to turn it into a shelter? If there’s a way to do this without getting wet, I’d practice it a few times in the rain before going out.
Regarding the Salomon SLab Peak 20, if you haven’t already done it, cut out that inner dividing shelf material (really pointless in my opinion), cut the excess straps (maybe it’s because I’m smaller, but I’ve found Salomon puts so much strappage on their packs), and remove the back pad and replace it with your new folded-up Klymit pad slightly inflated (or if you get a CCF pad for added winter insulation, use that pad).
Also, regarding the pad, you obviously have no insulation where the holes are on the Klymit pad, so if you get a quilt, you might be cold. Maybe consider an UL sleeping bag system instead of a quilt, like Nunatak’s half bag (“elephant foot”) and down jacket. I’m a cold sleeper, though.
I personally do the “cold cook” method, and sometimes the cold soak method if I’m craving ramen. I tried the Esbit foldable stove, a DIY Ti foil windscreen, and a DIY Ti lid for my Ti pot, and it worked okay for some trips. I found that when it was windy, even with my windscreen it was difficult to keep the water warm for long. Also, as others have mentioned, it stinks and leaves gunk on your pots, which I would have to clean along with my dishes because I didn’t want it attracting animals. Mostly I stopped bringing along a stove because I hate to do dishes. I’m usually cold at camp and really don’t want to handle water. So now I usually bring bars, packaged puréed food (kinda like baby food!), and any high-calorie/fat/protein foods that don’t require cooking. If you’re a coffee drinker, I bring the iced coffee Starbucks Via packets. And if you have room in your pack and really feel like cold soaking, the collapsible mug or bowl (“Go Container” by sea-to-summit) works really well for that purpose, but DON’T LEAVE IT OUT overnight unwashed because the squirrels will chew right through that rubber material! :)
have fun and stay safe!