Personally I opted for a Barong, over which I wore a western style suit. Our wedding was Air Conditioned, so we didn't need to worry about sweat from heat
The only thing I will say is this . . . plan ahead. Get your barong tailored. I left it to the last minute, and because i am also (as you so eloquently euphemised) a "biggish chap" and I regretted it.
Get your contacts together and get the barong tailored.
My 2 centavos.
