>>2427444Alright, just as I promised, here is my advice.
Buy the tent and for now that will be your sleep system. Get a blanket from your home to sleep on and to cover yourself even if it is hot.
So that leaves you 340 (not counting on getting debt back lol).
Ditch the entire cooking system and the whole hunting larp. You're not going to catch anything. So that saves you money. To budget, buy bread. You might not like it, but that's your food for 10 days max. On top of that get the cheapest cut of dry or cured meat, so you also have proteins. If you feel generous, by some pastries, sweet or savoury (I've been to Poland, you got great ones, plus food is very cheap by EE standards).
Since you got no stove, no pan or pot will be needed. If you need coffee for energies sake, take a 0.5l bottle and keep it hanging outside of your pack. It will heat up. At some point chug in some instant coffee. Now it will dissolve better than in cold water and you can have cold coffee in morning. Or tea. Or whatever. Maybe nothing if you don't care for it.
Spoonfork? Just get a fork or spoon from home.
Flashlight is optional. Buy a cheap power bank and use it to charge your phone to get a flashlight. 30PLN seems too much out of your budget, surely there's cheaper options.
Get some scotch tape and a needle with thread in case you need to fix something, surely you have some at home.
Honestly you're more likely to get a headache, so I'd take some painkillers also. But yes, nothing more tbf.
Do you have shoes? Where will you be walking? If you're crossing flat, easy ground, your regular shoes would unironically be OK. Hiking ones are better, but you have to do with what you got.
I think you can still do it. You'll appreciate it more later on when you can buy more gear you were missing and it will give you a better idea of what to get, more so than thousand posts on /out/ about gear recommendation; burnt hand teaches the best, as the Greeks put it.