[theun4gven]

If you are going to use a common manifold, I'd recommend using ported body solenoids with a manifold that only contains common P, EA, and EB ports. These manifolds are machined from a single block and can get pretty heavy which means only having these three ports instead of all five cuts down on the block size pretty significantly. The difference here being that your A and B outputs will come out of the top of the solenoid instead of the side of the manifold.

Using sanddrag's first link above you would probably want to choose from "Individual Wiring Type Manifold." The image shows ported body solenoids with a common P, EA, and EB manifold and base mounted solenoids with a common A, B, P, EA, and EB manifold. It's pretty easy to see the size difference between the two manifolds and get an idea as to how your tubing will run.