you have a very deep bilge. There is plenty of room to put in a support for your battery box that will put the top of the battery box up above the level of the top of the stringers. Your battery box lid should be strong enough to step on without stepping on the cables or terminals, so you won't lose any stepping space. I have one 4D in such a location. That is my start battery. My house batteries are at the same level, but on the outside of the centre stringers, so the rise of the hull puts the side of the box on the hull, the other side of the battery box is on a support so the top of the battery box is above the stringer.
__________________
Keith
|