When I was done with that I decided to go back and check whether it was the same on the ESB. From the reference I could find it appeared so. Much more tapered at the front and with sharper corners, however, this one also had a taper at the sides, unlike the RotJ, so I incorporated that. When working on it I found some bad geometry behind the coin slots that may have been the reason why the 3D print slicer reported errors with the model. These errors are not visible from the outside and the other 3D software didn't pick it up. But, I fixed it and from what I can tell the red lenses were the only difference between my model and the reference that I could find.
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If anyone can spot any other differences I would love to hear it.