Thank you!
I'va already created an account checked all the sites. They're really helpful.
Concerning maps- I know their cost will be marginal, I just don't want to buy ones from this year becouse I won't use them.
Germany is not a problem- I have their maps. Surprisingly, its the most common foreign destination from Poland
and our AIP- nobody knows why it's not operational- it is far more up to date the printed version.
Thank you for help. BackPacker if I finally make the trip, I'll contact you.