Sounds pretty good!!! Engine is on the way with the 720. Border shipped it yesterday, should be here next week. Can't wait for it... I think that engine for that price is a pretty good choice. But for our country the bigger cooling head is a must (37*C outside at the moment), so I ordered that one as well. I think the Serpent guys have a couple of different cooling heads in their bags available, I had seen different ones in Kandelhardt's bag.