Looking for some help getting security grates for the rear and side (sliding door) windows. We want something sturdy (not the mesh/wire gates). Preferably we'd like full panels to cover the windows, but will settle for (diamond shape) grates. I'm having a tough time finding them, and actually have not been able to find the full panel at all. We found one site with the grates we will settle for, but I wanted to check here first to see if anyone had any other options for me. thanks