In Poland it is a little cheaper. Theoretical ATPL courses are about 2500 PLN (depending on the group size, and distance learning is availble), intitial medical is about 400 PLN, CAA charges about 2000 PLN for theoretical exams, I dont quite remember rates for practical exams. As for the flying it depends on how much validated experience You can provide and how much (if at all) You're short to meet the JAR-FCL 1 requirements. From what I've seen in practice each case gets an individual conversion program approved with the CAA.
1 EUR = 4,4 PLN
1 GBP = 5,1 PLN
1 USD = 3,3 PLN
So to answer Your overall question, conversion for under 10000 EUR is definately possible in Poland. You might also check out Slovakia as they operate EUR, so You're not risking the currency exchange rate fluctuation.