that sounds like the magic number but not enough to support a whole family maybe yourself and your wife an expenses in your own home but not for two or three other households.
Don't think an agency is worth paying.The main thing is to know the laws and how many times you can do this.withiut a retirement visa or marriage visa.possible work visa.
wow your going for broke.The family will want you to purchase a few cows buffalo and maybe get a tractor and a pickup truck.You are in knee deep my brother.