That's one I've owned before. Very good. Take care of the grates.I bought this one this afternoon while I was out.
https://www.lowes.com/pd/Char-Griller-S ... 1002666868
I'd suggest buying some food-grade felt tape strips to seal the edges of the cover. and the join between the side box and main cooking chamber. You might also consider getting a piece of plastic to put down on the bottom shelf thing; in my experience the large format mesh type deal they've got there isn't ideal.