OKAY!!! I'm definitely going to need some more info and details on your cherry picker. That is way cool! So many uses popped into my head on ways to utilize that. Lol.
Yep, IBC tote frame. Check out FB marketplace. I got mine for $40. I would say get the 275 gal frame. Just know that the "floor" of the totes are sloped so, you may have to add some "flooring" to level it off and to cover the sheet metal so it isn't so slippery.
Mine is the 330 gal. Since the basket is so tall, I added a modified pallet to the floor. Alternatively, you could always cut off the top rail to reduce the height.
One additional caution. Be careful in clamping the basket to the loader/fork frame. make sure to camp it to the fork frame only so that when you are curling/dumping the forks, you aren't putting more pressure on the clamp/strap.
added a saw holder to mine as well.