Hi Jan I obtained my residential in Jan and yes I had to prove I had a 1000 at least going into my bank every month. I had to get a letter from my bank with a branch stamp on it. If you do not have your S1 yet, you have to obtain private health over and they want to see a copy of the health insurance policy.
I hope you get what you want. I love living here and it is easy to live simply and happily as it is to live expensively. It’s really your choice.