Locnar loves his drip systems. I think it sounds simple and effective. I'm sure he will show up and post in regards to this. Go on Loc, I know you want to.

NFT - sounds a little full on for a first attempt. Try rigging up a little DWC setup or a hand watered bucket system for a first test grow. This will allow you to dial in nutrient requirements and better gauge hydro from start to finish.

Flood - I've heard that the hydroton balls tend to float. And if something goes wrong you will flood and drain your grow room.

Keep in mind my hydro experience is very limited. You might want to wait for some professional opinions.