I used low-friction furniture movers (EZ-Slides) on my carrier. I thought about casters, but my experience with them is it can be really difficult to get them lined up perfectly. The disks I use are rated at at 400 lb each and I use four. Serious overkill, but smooth move.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk