Thank you for replying back.
Since you have a location have you checked in LDS-Mormons for the church records. No problem reading Polish. The church records could be in Latin. The worst you have to fear is the priest's handwriting.
Try also Poland's archive:http://baza.archiwa.gov.pl/sezam/pradziad.php?l=en
Have you considered asking for help on Poland's board for the regulars to translate the document for you?