Not having a garage to detail in really sucks (I'm in the same position), but for you that's gotta be a lot worse to not even have access to water or electricity.
You'll definitely need a rinseless wash like Optimum No Rinse to maintain and wash your car. It'll save you money on not having to go to the coin-op wash all the time and having to use their soap, which will be much harsher on your wax/sealant.
Without electricity, polishing by hand will be the worse part of all this. Personally, I wouldn't go through the hassle of putting so much work into doing it by hand, and getting sub-par results compared to what a PC or rotary can do. But that's just me because I'm lazy. I don't have any experience with this, but
Meguiar's ColorX is supposedly a good product if you're doing it by hand.
Klasse AIO hardly removes any swirls with a PC, so the only reason I would use it was if you were prepping the surface for KSG.
I think without a machine, the route I would take would be to use a glaze and fill as much as possible, and then top it with a carnauba.
Good luck!