A reasonably useful week.  The headlight bowl has been fitted to the cab, as has the horn, using rubber gaskets made from the sealing material for the cab floor.  The steel front section of cab floor had a final coat of paint and the pedal/steering column aperture has the holes tapped 1/4 UNF for the sealing rubber clamp plate.  The steel for that has arrived too.  The conduit carrying wiring to the horn and headlight/panel light has been secure to the cab outer wall and a length made up for the sidelight.  I devised a way of adapting the conduit to fit the sidelight by soldering a piece of tinned steel tubing into the threaded part of the light assembly.  I cut the new front o/s corner panel and am in the process of attempting a temporary fit so the sidelight conduit can be installed, then all the front external wiring will be done.