Arranging seats around the motor so its not so conspicuous.
Additional seats are fabricated using the original seats as reference:
From Right to Left (above), the narrow brass bar stock is used for the seats and the wide bar stock for the base. The bar stock is measured, marked and cut. The wide bar stock is notched so that the tabs can be folded up as the seats legs. The wide center tab is ground off with a moto-tool. The narrow stock is bent matching the angle of the original seat backs. Then the seats and base are soldered together. Take care with soldering the seat assemblies to the floor. My seats are a tad too close to the sides and scrape when the body and floor come together.
Installed and painted. Some seats are right over the motor mounts. So seats were fabricated and then soldered to flat bar stock thick enough to get the seats to their proper height. Holes are drilled to accommodate the mounting screws for the motor. So what you see here is a sandwich of floor, mounting plate, insulation, motor tab, and then seats, all screwed together.
See? The motor is already disappearing into the background. If you look closely, the front seats of the center section (behind the figure) are seat backs only. You can see holes on the floor in front of them where the tabs on the bulkheads attach to the floor when the body and floor come together. Right where the seats are.
Alright, the seats are in and ready for paying passengers. Yes sir! Paying passengers!