The first OIFs had the lunch box latch for the seat, later changed to a sprint plunger knob. And the hinges were moved to the opposite side because as you might have already found out, the seat drops closed when on the side stand. I guess they figured you would never have the seat open unless on the centre stand.
You have a fairly complete '71 Lightning.
The broken front mudguard stays is a little unusual as it was better re-enforcement than the original 1/4" wire stays.
Missing the tool tray between the coils and rear mudguard.