As mentioned above, make an appointment with the Embassy as early as possible (can be done via e-mail, address on the website). Conversion is normally a very quick affair, but they occasionally ask people to come back the next day if they have a backlog of paperwork.
Also you need a CENOMAR for BOTH yourself and your wife, these can be ordered online and you fiance can pay for them both locally and they'll get delivered to her house.
www.ecensus.com.ph
