Mounting a Berk set back in my Alaska work skiff. I'm doing all the fab work here in CA before shipping everything up to AK for the install. It appears that making the 1/4" plate fit around the pump itself is pretty straight forward, I'm wondering however, how you seal up the area below where the plate mates up with the intake flange. Do you cut two small pieces of alum to fit into each side under the intake flange or what? Anyone have any pics?