> My funding goal is approximately 160'000Euro and I could break-even and return investment in approximately 2 to 6 months.

The way you have put it, it looks like you don't require angel investors. They do not work this way. What you need is a bank loan, which will not cut into your business ownership and at the same time you will get the required funds(with your claim of returning the money back in 2-6 months!)

Have you tried business loan with your local banks?