Hi Eddie, I just replied to your PM, but I can repeat it here too:
When I started with the final assembly, I was sure I'm not gonna make it! Seems unpossible. But all you have to do is hold your breath and try carefully... You have to start on the front, stretching the body as much as possible and in the end you have to bow the chassis to get the rear end in. It is very tight! When it was done, I simply couldn't believe that nothing broke.