Where to mount ballast pumps

[ers906]

I am finding a hard time figuring out where to mount the four Jabsco ballast puppies for my ballast system in a 2002 Super Sport. I built a bracket for over the front portion of the transmission (under the middle seat) for three of my pumps, and will probaby place the fourth under the starbord back seat far enough back that watter cannot drip on the pump unit. I was trying to figure a way to mount them in the engine compartment, either with a bracket over the exhaust manifold or mounted to the back of te hind seat but I couldnt find a way that would make me happy, not decrease the ablility to reach the shut off valves and the abliity to see the engine compartment. I have the PCM excaliber 330 hp, so I am not sure if it is the engine size which makes it difficult (since Ihave seen others mount them there). ANy advice?