That is the worst looking building for a BBQ joint. I don't know how much change your landlord will put up with but that place says nothing, it could be a gold fish store as far as anyone knows. You should know what's being sold without looking at the sign. Go tour some successful shops especially national chains that have paid big bucks to run designs by study groups. On the inside it's going to take more than a new boring paint job. Think barn iron, rough lumber bright colors.
FEC100 - Lang 60 - WSM - Traeger