Hi Dan.
There is a red and white Warrior 175 that fishes out of Lymington (or at least used to) that has a homeade version fitted to his transom. Same principle, but with smaller tubes to suit the mackeral.
Pretty simple set up - same kind of pump used for a tank, fitted to a manifold made from plastic tubing to feed water into the tanks.
In my opinion, realistically you could only fit up to a dozen to your transom, which isnt alot of livebait when bassing....
Stick to a tank, it suits UK fishing better.
Adam