Recently inspected a new Sanibel 5'er at our dealership. One thing that really caught my eye was the cargo hooks made into the floor of the cargo hole.
Purchased several from the Home Depot, placed them where one could hold down the BBQ Grill that came with out 270RET Crusader, and another set on the opposite side to secure our tool box from sliding around. Be careful on the left had side, under the floor are the gray and black water holding tanks, need to use a screw just long enough to go into the plywood.
Also installed an LED light in the forward cargo hole where the electric jacks are located, really is nice at night. They are tied into the switch for the outside light next to the Ext and Ret. button for the jacks.