Here's something I did that worked out well and was easy to do.
I mounted the grill as far back as I could off the stern rails so I would maintain as much cockpit space and wouldn't drip grease on my seats. And I made a support strut using bimini connector fittings.
It came out really solid. I also have the Magma - Serving Shelf that I set utensils on. It stores nicely in the propane tank compartment when not in use.
C400 1999 Mk1, #154, San Diego