Tongue box layout

How does everyone have their tongue box laid out? I’m planning on mounting the fuse block/master fuse/master switch to a board and securing the board to the wall of the tongue box, but should I drill through the box to secure the board to the wall?
I’ll also have the battery in there, mounted on a separate board on the floor of the box.
Any other useful things I should be putting in the box? I figured having the chocks in there would also be useful.
I’ll also have the battery in there, mounted on a separate board on the floor of the box.
Any other useful things I should be putting in the box? I figured having the chocks in there would also be useful.