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Your concerns are why I suggested something along this product line. They are made for smooth surfaces (they even claim to hold to non-skid) and require not drilling, etc. If you were to attach the suction cup(s) directly to the storage box, you could move the box to other locations on the boat (same goes with using the cups and bungees) if desired. One application I saw was an owner that had a side console boat that had open storage underneath (much like the 150) and he stretched a bungee cord between two cups attached to the back of the console. The bungee held/pinned two small fenders and one of those deep/orange Plano marine toolboxes against the console so they wouldn’t move around while underway.