If you're reading this and heading towards a similar situation but you've still got a bit in the bank/You know someone in this situation.
consider trying to scrape some cash together and get one of these
You can make a pot stand out of chicken wire and a tinfoil windguard (which you can probably find/ask around for)
You use meths as the fuel. It will burn for about 30 mins at a time, you can get a 2 litre bottle of meths for £10 so you get 8 hours? of cooking time for £10. It will heat a litre of water in 10 mins.
Not ideal, but its a legit camping stove that I use myself, hopefully it can help someone feel like they've got a bit more dignity while they're struggling.
The pot sets that go with them (which have a built in pot stand/wind guard) are duke of edinburghs reccomended kit, so theres a lot of them bouncing around in charity shops/peoples sheds etc so you may be able to hunt one down.
If you want to cook food inside you can get an alcohol stove or if you want to heat up water or canned soup you can get a can of cooking gel/canned heat.
Alcohol Stove
https://www.amazon.ca/Trangia-Spirit-Burner-with-Screwcap/dp/B000AR7970
Cooking Gel/Canned Heat
You can also buy alcohol stoves that are pre-made, and they’re cheaper to get fuel for and you don’t end up carrying an empty fuel canister around.
2) Keep all of your valuables (electronics, passport, wallet, etc.) in an easy-to-remove bag. I use a small ulock and try to lock my frame to something and then run a small cable lock through the handles of panniers. My wheels have anti-theft bolts on them, so they're not easy to steal. Keep in mind that most theaves are opportunists and want something quick and easy--so don't make your bike quick and easy. For grocery stores: some stores will let you roll your bike into the entrance area or leave it leaning near the cash register.
3) Personally, I like a warm meal / coffee especially when the weather is wet. If you're on the fence, I'd suggest buying a Trangia alcohol stove ($20!) and you can always ditch it if you're not using it. I use it in conjunction with the Vargo Hexagon Wood Stove but you can get a smaller/lighter pot holder. The stove is light, runs silently and the fuel is cheap and easy to find.
4) This time of year is a good time to get apparel on sale. Check out brands like Pearl Izumi or the house-brand at Mountain Equipment Co-op (if you're Canadian.) For touring you can usually skip a proper jersey and instead do a merino t-shirt, you don't really need the pockets since you've got bags with you.
> Fancy Feast stove
That's what Andrew Skurka uses. He says that he has tried various other builds, but none of them saved him enough fuel (vs the FF stove) to be worth the bother.
Personally, I like my Trangia, but I'm not an ultra-lighter. It's still pretty damn light, though, and very strong, since it's made of brass.