2006 Chaparral Signature 276, wanting to install my new Catalina MAGMA grill on swimplatform. Is the swimplatform hollow? Bolt through is probably not an option. Sinking 1/4"x 1 1/2" screw bolts into platform will probably be the solution, but not certain. Can I just run these bolts--along with 5200--into the swimplatform? Installing the pedestal mount.