How do they define "large" ? Maybe 500k PHP is large? I've regularly deposited and withdrawn 1m to 2m to even 4m. They've never asked me for any documents. Anyway, coins.ph, if that's what you use, has a 400k daily limit, so you just need to do that for a few days to get enough to buy a condo.

And, I'm almost sure, you can somehow find a way to get some sort of loan or mortgage for a condo.