I think that your "Boss" should think about the future Lawsuits that may arise from the sale of this car.
The frame needs to have gusset's welded at the joints on the frame. Also there does not appear to be any cross members in the frame and the seat supports also need to have vertical and horizontal gussets to prevent twisting of the main frame rails. I would not drive that car faster than 5 miles an hour. I ........dunno......!!!!