To make the bending easier on the system I would reduce the perforated sheet to one surface… Then notch out a piece on the corner. (add thickness later)
Use radial bend on the two sides.
Use curviloft to fill in the gap.
Thicken with fredo joint push pull…
Mesh looks too coarse? Also, you only need to do one corner on a piece of sheet and then copy it around to the other corners. I’d of made a better join line, but you get the idea?