Pony Bumper Lifting via Winch?

I'd like to be able to lift my Pony using a front bumper and
an available winch mounted on top of a steel shipping container.

The purpose would be for changing blades, cleaning, & other
maintenance and service.

I'm guessing the generic bumpers are spot-welded & not strong
enough for this.

Would a bumper built from 1/8 angle iron (bolted or welded together)
be strong enough?

Thanks - David

Pony Bumper Lifting via Winch?