After a bit of fiddling and losing one bit under the desk for a while I managed to get all the etched guard-rails attached. Then the fun of getting the whole lot square. The instructions recomend the 'one side, one end ' approach which doesn't always work for me. In this case there is a little bit of a 'wind' in the sides due to the thin mouldings, so a couple of dodgy moments trying to hold it firm without dislodging the etched parts.
Below is the 'replica' coach on the FR