I am having trouble modeling a part as a sheet metal part. I am able to model the part as a regular 3D part but can't convert it. At first I tried modeling the part flat then applying the necessary bends. the part that I'm having trouble with is correctly bending the side wall up the also bending a ridge up within the bent side walls. I have attached a PDF (image) of the 3D part, the 3D file and a sheet metal version of the part. I need to be able to show both the bent version of the part and the flat version to a vendor for costing purposes.