I was wondering if anyone knows where I can get a metal battery tray to mount to my trailer tongue? I've got an electric winch on the trailer, and we tow the boat behind multiple vehicles. I was thinking it would be easiest to mount a battery to the tongue of the trailer so the winch will work no matter what the tow rig is. I've done some searching and haven't come up with anything. Have any suggestions?<br /><br />Thanks, Mark