looks good. why didn't you use copper mesh ? availability? cost ? is there a metal plate under the plywood (inside the camper) to hold that monster? Or is it simply held by the plywood? Other than a friction connection between the mesh and mount, is mesh electrically bonded/connected to the stainless mount? You should properly weather-seal that PL259 connector at the base of the antenna - when laid over, you'll get water in there and have issues in no time. A bit of coax-seal should do the trick.