Rolling Metal Scaffolding with Crane

[Toolmaker51]

Many A-frames don't take moving under load kindly, but can't dispute this works. Actual load weight is one factor, load height [CG], position within footprint of casters, and load balance. I'm certain doubled bracing on the same side might be more instrumental than apparent, along with combined outrigger-brakes, unloading the casters.
Good job, moving heavy parts single-handed is frequent issue.