Sure, I’ve done that a few times. The key is a slow, steady descent and keeping the cactus centered—no sudden turns, no abrupt stops. It’s almost like breathing: a calm rhythm keeps the plant steady. Then you can lift it out before it’s even noticed the drop.

Sounds like a solid plan. I’d keep the plant’s base centered and use a low, slow drive. A gentle lean on the downhill part helps, but keep the cabin steady so the cactus doesn’t feel any jarring motion. Good luck—those desert treasures deserve it.