Hello Friends: I just mounted a Road Shower to the load bars of my CC. It weighs 84 lbs. full of water. It is mounted near the front so the shower nozzle is over the shower curtain frame, but that weight makes it much harder to lift the roof for tent deployment. The shower has a side mount option, and if I could mount it to the lower part of the clamshell (below the rubber tent gasket), I won't have to lift all that water. Can I rivnut into that piece below the bed gasket to make a shower mount? I can't tell what is behind that surface and whether the surface is sturdy enough to handle that kind of weight. Any ideas? Thanks!