Having these information it will be easy to find the records on your polish ancestors. The only problematic thing might be the fact that in dolnoslaskie province there are 3 different places called Nowa Wies. Do you have some more documentation which might lead to "the right" Nowa Wies?
I done some research in Wroclaw Archdiocesan archive lately and I think i might help you anyway.
Just write me on: email@example.com
Good luck in your researches!