Here's the side-view plan for the blue ramp. Sorry, I guess the exit angle was "only" 70 degrees. All dimensions are either in feet or degrees. I built it four feet wide to make cutting the plywood simple. After the CADD drawing is a shot showing the construction and bracing. The sides are 3/4" plywood, the cross pieces and framework are all 2x4s, and the ramp's surface is 3-ply 3/8" plywood for easy bending.
