Either way you look at it you're probably going to have to use some kind of spacer because that battery reaches way down in there. I've actually got a piece of really thin cardboard covering a bar I cut out from an old axe cp frame and I super glued it on one side so it kinda flaps open if I need it to. Anyway, as you can see from my pictures my battery leans a bit forward too. I've found that with more rubberbands it straightens up a bit. I've also cut out a slot on the bottom of my canopy and I think it helps with making the whole thing fit. Anyway, from what I can see from your pictures, an easy solution would be to keep that brace there and add another one on top of the battery near the bottom end, and that should do the trick.