I have a 23 cc.... I mounted 2-4 drawer units that house the larger plano boxes side buy side in the front and 1-4 drawer unit with the smaller plano boxes on the starboard side......With carefull layout so the inside corners don't hit and making cardboard templets for plotting it was a piece of cake. All three boxes have the swing down doors, made of starboard and have a red plastic box that the plano's slide into. If you need more info I can email pics and dimensions