Congrats for your future wedding!
While she is still in Zamboanga, she may prepare some papers or requirements to get a passport, and papers for your future wedding too. She can go to her Local municipality to apply Birth Certificate copy at Rgistrar's office, If she got it, that means she is Genuine registered at National statistics Office and she can easily file an application for an AUTHENTICATED one. She can also apply for a Voter's ID at Election Office in her Local municipality. This will serves as one of her valid ID's. She can get a Certificate as VOTER in that place if ID is not yet ready for release., She can do some inquiry at The Registrars Office regarding your future wedding too. The office will give her the list of Requirements on how to marry a Foreigner. She can apply NBI (TRAVEL ABROAD) in her Local Municipality if they have NBI office there. She can also apply CENOMAR at nearest NSO office. That is Certificate of Singleship and a requirement to marry a foreigner. She needs ID's old and new, Voter's ID, postal ID any valid ID for applying a passport.
Once she got it all, then it will be easy for her to get a passport and marry you
GOODLUCK!