Hi guyki, welcome to the forum
Sorry cant' help you with the wedding costs. Plenty of members here got married in Phils so may be able to help you. But it really does depend on so many factors, such as how many guests, how many bridesmaids, clothing, flowers, wedding venue, transportation, photographic and catering etc. Everyone has a different wedding with differing costs.
Her in UK costs can be very basic just to wed or thousands for 'bigger do'.
One thing for sure is that a wedding in the Phils will be much much less on a like for like basis.
Hope someone will just give out an idea.
I'll start the ball rolling with £2000