we must bless for both RK steel stages and accessories

Not crazy at all! The round crosssection of the bucket is very rigid along that axis. Building stage for what you need, setting up on uneven surfaces is a challenge even with the best equipment.

In fact if you had enough of experience, you could have used portable stage, there are many other adjustable legs based on a sleeve with holes every inch or so and a screw foot for the fine tuning.. You just have to divide the needed loading by the number of supports. That being said, it's different if it's one person performing on stage vs. driving a forklift on the same area with 1200 lb. point loading on 4 small areas.

portable stage

I actually build a portable stage for a show in LA where due to the uneven flooring, every leg of 6 platforms was a different size. Steel Deck does have legs with screw adjusters like scaffolding jacks that make uneven surfaces a lot easier to accommodate.