Thanks for that. Never realised aluminium could do that. I wonder why the Kelly Kettles stand up so well. Maybe it's thicker or a different grade alu.
I've measured my trangia and it's 220 by 220 (being circular) by 150. Comparing that with the Swedish army one which is 200x170x120mm, I'm not sure I'm actually saving that much space. Also, the one I've got is lighter, and includes 3 pans, a kettle and a pot lifter. I could leave a pan or two out and out and make it thinner - probably get it down to about the 120 width mark. Hmmm. I really like the look of the army one, but I don't know. I'd probably just be buying it for the sake of it. My other option, I suppose is the Trangia 27, or the even smaller one, but the smaller one looks a bit, well, basic.
Options, options, options.
Still kind of interested in the swiss volcano stove, though again, it's probably only really good for rehydrated food.
Might have a look at the Honey Stove, or maybe some of the homemade wood gas stoves on Youtube. I'm still undecided about meths vs wood, though. I wonder if there's an option out there that will allow both. There must be.