agreed on the firebox thickness.
I would not go less than 42" wide.
also, if budget allows get the best casters you can. makes it easier to move around.
also, a ball valve drain if that's not standard.
stainless steel front shelf is nice, otherwise, you could spend a lot of money in foil longer term laying down a long sheet each time out to keep the expanded steel free of mess and drippings when you pull out racks.
Lonestar 24" Vertical offset w/ Insulated Firebox & Performer Platinum
Former owner: Jambo Backyard, Klose BYC, Med. Spicewine, Pitts & Spitts, XL & (2) Med. BGE's, 22" WSM & (2) 18" WSM's, 18" & 22" Weber Kettles