I'm bidding a mid-size pond, 30x30ish x 4-5' deep and have done some smaller Aquascapes ones but with the bigger ones it's more piecing stuff together. I am open to some other brands for the waterfalls or skimmer, what have you guys that do the bigger ones use? What about a bog, is it needed? I've put together a price without a bog and with rock and everything and it does get up there. I'd be curious what it would be money wise in other markets - PM me if you would like to share.