Use an 8 foot 4 X 4 or a 6 X 6, and you can swing both doors open. That's how I used to handle a Clark 5 speed on bigger rigs when I had to change a clutch out on the side of the road, back when I ran a 24 hour Diesel shop and road service. Sometimes having a shop with a smooth, level floor just isn't an option. Ditto for working on a construction site after a hard rain with ankle deep mud.
Jerry