Bugger. Having the right-side door in showed, when standing on the rear shocks and bouncing up and down, that the entire frame flexes a full 10mm side-to-side. That means that a little bit more attention to structural integrity and diagonals needs to be paid, so the doors need to be done according to the original design. Starting on the left side this time, the hinges go on the *outer* part of the air guide (marked as green blobs). Also, most of the left door will be made from more solid 20x40mm rectangular section, because when closed, the door is essentially part of the structural integrity of the vehicle.