Some nice images there guys, thanks ever so much. I remember back in the day that some would knock the side windows out of the TK cabs and have a metal box welded across the resulting hole, at least could you get yourself across the parcel shelf behind the seats.
The upmarket version was made by cutting the back of the cab right off, and welding in an extension plate, then welding the back of the cab back on. An old piece of carpet, a pile of blankets (or if you were lucky, a narrow mattress) a set of old curtains, and away you went with your smart sleeper cab.
How things have changed…
Richard