Building an "A" type hip-spoiler for the Manta

[Blueovalz]

With cap installed, and with most external fasteners in place, but not finished:










To ensure the body under the spoiler was sufficiently strong to handle the forces imparted into it from the spoiler, I've added two perpendicular flanges (3" deep) on the inside of the rear vent panel, that extend from the upper rear body lip, down to the lower valance, and which are used with two 3/8" bolts to hold the rear of the body panel in place (as well as act as hinges).