years back i had my screen mounted on a piece of plywood and set it on seat in boat or on a cooler then a bungey cord to keep it from bouncing around when water is rough worked
I just use a 12pk cooler. Battery is kept inside, mounting bracket in mounted on the top, hole drilled out the side for the wires. Works great year around.
I was given a Eagle Supra Pro I.D. but it has no mount. As I only have a 12' aluminum, I was looking to make a box to use it like a portable. Anyone have ideas or pictures of yours?Thanks