[PaintPolisher]

I take care of my churches five buses [all 21′] that are exposed 24/7 to all airborne debris.

Equipment I use for large vehicles:
2 step ladders 10′
1 plank 2″ x 10″ x 8′ edges rounded [round over router bit] to reduce leg fatigue when sitting
2 C clamps to secure plank to step ladder steps creating a perch for upper level work
1 16″ x 16″ gardeners kneeling pad to use for kneeling and sitting on the ground
1 light weight, 2 step painters ladder with paint can shelf
1 mechanics seat/stool on rollers with adjustable seat height
1 Sonic brush for various tight nooks and crannies

You have a lot of surface to cover and my best advice is to pace yourself.

al