You’re cheeky, you know I can’t do that...but that aircraft was licenced to carry 9, which I assume to mean eight passengers and the pilot.
So from seats one through to 8, you have Fuddy and Yamamoto, and the Key couple sitting right behind them. That’s four.
Either in front or behind, the tourists sitting one on each side, and the photographer and the swimmer.
Four rows of two = eight people. Near enough?
tourists probably in 1 a and 1b, fuddy 2a, yamamoto 2b, Key woman 3a, man 3b, swimmer 4a photographer 4b
I believe it could hold 9 passengers and pilot one passenger in the cockpit.