Ok so I want to mount my battery under my false floor in my trunk where the spare tire is. I want to put it either in the far right or far left corner right up against the back. I want like a strap or metal bar to go around my battery to hold up against the back in place that I can use self tapping screws to screw holes so I can mount the bar in place so my battery won't move. I can't find anything like that online. Has anyone every done this before and if so any advice on where to get one?