I have a SecureIt Agile 52 gun locker that I'd like to attach to the wall, and I'm wondering how best to deal with the baseboard offset that keeps the locker from being flush against the wall. Simplest solution would be to attach a horizontal wood board to the wall behind the top of the locker with the same thickness as the baseboard and then screw the locker into the board. Next simplest solution would be to cut out the baseboard so that the locker can be flush to the wall. Or maybe build a platform to raise the locker over the baseboard. This is in a walk-in closet, so I'm not too concerned about aesthetics. What would you do?