If I was you, I would look at the successful models already being sold for answers.
Ideally, for a normal sized gas grill, 3 to 4 burners, heavy steel body, sturdy steel frame etc... The market in the USA is already incredibly flooded with cheap, flimsy grills, another one will get lost in the shuffle.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
Whip It Off, Chambers!
"perhaps...but then again...maybe not..."