so far your business plan seems to be extremely vague
I guess, first you need a solid business plan and you have to be able to promote your plan and explain it in simple terms to all than can help you and want to listen, like banks, advisors, potential investors...
What are you trying to do and why do you think this a great idea what are the numbers behind the idea why and it will work better in Poland than in Holland?
Poland is obviously a difficult market to invest even for Poles living in Poland
Anybody from outside has to be much more cautious and well aware of the specifics of polish economy like wide spread corruption, thievery, bureaucracy, hi crime rate, relatively low standard of living, high crime rate, wide spread of grey and black market for labor and stolen, smugled goods etc
Every foreigner is perceived as a gullible fellow that is easy to cheat and whisk out of money, and you will be continuously approached and tested for your honesty and integrity by all kind of unsavory "characters"
On the other hand you might also meet great people, friendly, trustworthy, honest and very helpful, however, this will be rather exception than a rule.