Hi,
I only have an idea regarding sa timeframe ng pagpapakasal dito. If civil marriage under sa Registry, you need to lodge a Notice of Intended Marriage (NOIM) for at least a month before kayo magpacivil ceremony. Pay na agad then the same day you ldoge your NOIM, pwede na agad kayo magset ng date for the civil ceremony. So in that case, mga 1-2 months should be enough basta wala na kayong hanash and all you want is to get the civil marriage.
If not naman, may option ka to do the de facto relationship register..ang alam ko anytime naman yun, punta ka ang sa Registry mismo with your partner. Hope makatulong kahit 2 months late na ang reply!