search the forums for most of your answers.
4-5k $ will go far if you do it right.
(I read somewhere on here that an English teacher in Poland makes ~60zl/h)
fat chance i feel but if you're smart maybe you can hook a few with that.
I know stuff like food, housing, utilities, etc. is cheap in Poland,
think again.. it's nowhere close to cheap in PL
(plus monitor, printer, accessories)
are those 220-240V? may work in PL although you want to check the phases there too.