Wow. Took the car apart...one thing is that you don't have to take the screws all the way out...just a quarter inch or so is sufficient to remove the frame and interior from the shell. The trouble from there is that the lead plugged into the top lighting LED strip is too short to remove the shell. So I pushed the side window out of the cupola on the side where the LED plug was and unplugged it with needle nose pliers. Then you can remove the shell to the point where the camera is still attached to the cupola but on a pretty long wire strip...and then remove the LED strip and then carefully the cupola from the shell. Glue the side window back in the cupola and the LED strip back and then you can put the shell back on the frame but wait til the end to tighten the screws and also repaint the side of the truck where the screwdriver knockered it getting the screw loose from under the truck . From there you can remove the camera window and make sure the camera is still square in the holder and that the holder is still glued to the cupola (which mine was not). Also then cut away a half inch of the the vertical strip on the back side of the retaining strips on the so the cupola can be snapped on or off when from the outside without having to remove the LED strip (and disassemble the entire car). Whew. Here are the results. Before and after, window off in both pictures but camera tipped on the "before" picture.
By the way Lionel, how's this going as to getting spare parts? I notice the trucks are not available, will they some day? Any tips on how to professionally get this thing apart?