Well I've bought and installed two orange LEDs into the bumper and they work a treat (- I must remember not to tape over them after the MoT though.
The stop lamps are now working - the switch at the pedal is a delightfully simple on/off - or maybe! but it is working today and I will try to obtain a new one tomorrow.
I have swapped switches around to get a foglamp switch with a working LED indicator in it , but it is very faint
It is now raining so the top spring pan will have to be done tomorrow.
Regarding the instrument panel :-
The starter push button just replaces the key start to provide 12V to the starter relay and ecu.
I intend to get the gauges (Revs, Speedometer, Oil pressure, Water Temp, Battery voltage) running from the 164 loom through the two round plugs and the indicator lamps (Side, main beam,Fog and handbrake) from the Sprint plugs. I can get all of these working off the car and, in parts, on the car but when it is all connected it goes peculiar......