Exactly. Just got back from the dealer and they said it's my choice to do either the 08 or 09 GGIII system but the 08 makes more since. I told them about my plan afterwards and they said it makes since and sounds like a better system. They won't go for the idea of doing the whole install with 3Tsunami pumps as that would be "custom" work.
Now, is the manifold for the 3 Tsunami pumps one piece or is it pieced together from various parts from Home Depot/Lowes?