I would like to have the two 6 volts batteries (and maybe even 4 later) in a metal box located just aft of the differential kind of like this https://www.vanspecialties.com/gallery_van/yota-4x4/ (see last few photos). Instead of a bracket that requires one to crawl around underneath like they did, I would prefer to access the batteries through a flush hatch in the floor. There's no way I could hang all that weight off the floor so it will require a metal box that's welded to the frame underneath. I was wondering if anyone has done something like that?