Robert Gift wrote:You can set it square on the bottom intake tube just fine.
But you must then secure the bottom to the truck to disallow it from sliding in any direction and you must securely guy-wire it to it's eyebolt so that it can't tilt or fall.
That is likely far more trouble then removing the projectors and not having to worry about damaging them. (Don't let them be damaged!)
I removed the 22 cones.
It is easy, just two bolts/nuts per cone. (First apply penetrating oil.)
Then I laid it down for transport, chocked it, then rolled it off the truck
on two 2x4 boards on edge.
Then I tilted it up on soil and moved it where wanted for storage.
With cones, you'll always have to keep it upright and a lift would be required for any maneuver.
If you decide to remove the horns, just make sure you don't lose any of the nuts or bolts. If I were you, I would put the nuts and bolts back on without the horns so you don't lose them while transporting it(make sure the nuts and bolts are secure).