Can you build a nesting box on the side of the hutch, my Flemish is due next weekend and I am going to be making her a nesting box the cage is 4 ft x 36in right now which I know is on the small side for a doe and her kits that why I thought I could build a nesting box on the side that could be removed and the side closed back up. Has anyone done this or would just adding a box to the cage be beter. And I would build it so I could look on and was secure