[jimcol]

If you really like the clock and want it in the Montana take it with you. One small screw and anchor hole in the finish is not going to diminish the value of your rig. Paint the screw to match the paneling and it will hardly be noticed when the clock is not hanging on it. Half the joy of RV'ing is making your rig homey.
For reasons already stated I am not a command strip fan in the RV.