2. 400lb front bag Fly High Pro X with special fittings.
3. Yes - what you have is a partial Gravity III system. There is a manifold system with 3 12V DC solinoid valves that are installed on the discharge of the common fill pump. Additionaly the wires have to be run in bilge up to the fron pannel and install 3 switch control which will control the fill. To control the empty 2 more empty pumps are then located to each rear side and wired back to the switches. Oh yea add to bags. Not real hard but takes alot of time. Pro can do it in about 4 hr and a newbie about 14
Roswell Swivel rack SI version are very reliable.
Your Moomba Dealer can get you everything you need