You can easily bend that on a press break with standard tooling.
not if you dont have one ,,, think thats the original problem.
MY two cents worth.
Some time ago made some brackets out of 6mm, that would have been impossible with a press brake. Just score the outside of the bend with a 1mm cutting disk, I scored to about 1mm and it bent like butter, then weld the outside of the bend. It forms a fillet like joint which is easy to weld and when finished looks like a very tight internal bend with a very nice outer radius. You could even touch it up with a flap disk if you have OCD
If you happen the have a standard hydraulic press you can use that tooling in it, I had the same depth issue. Just sat the tooling on some 20mm box section, bit more lining up but works
Also my tooling is printed..
Separate names with a comma.