5200 would probably work, I would space it slightly (like 1/16) with small pads of HDPE sheet or something, you want to insure you have a minimum thickness of adhesive. If you bang it down tight, the bond line will be very thin and the shear forces high. Plexus would be a more permanent bond, high strength and high flexibility along with pretty good heat resistance. Same spacing considerations. If you wanted removability, you could Plexus done a few SS T-nuts, and mount the plywood on that.