Pretty big difference in size their buddy... one plane doesnt have much standing room and the other is practically a flying town.
A gutted B-29 would make a nice "intimate cafe", the kitchen possibly would be in the back section or an addition, like the pic posted...seating could be inside or outside. Seats made from wing material, with a aviation motif (seats would have rivets, and be swoopy. Tables made from wing material or heavier parts, table weight or foot of talbe would be the wheels. Umbrella pole made from the metal rods used in the planes....
Kinda of the same idea as the guy who used made an orchestra out of several Ford Focuses.