Here are the pictures from the project. I had a lot more, but my camera is playing up, hence some of them are iPhone pics. The room became a complete mess whilst I did this project, so please excuse that!
First thing was to remove the doors, which is an easy enough job. I disassembled the lenses and doors.
I then washed the lenses and cleaned them up, I repainted the STOP lettering on the red lens and I also removed and cleaned up the reflectors, though to be fair, they've seen their best days!
I then removed the sockets. The sockets in this head are different to those in the others as they're not mounted to the rear of the signal case, they're bolted to the reflector assemblies. The wires are also simply wound around the sockets and secured with a small bit of solder - no terminal screws in sight.
The Neutral wires were simply wound together and had this porcelin cap screwed over the cable ends to make a common neutral, something which is seen in all of the Tin Heads that I have and I can't help but think how unsafe it is.
Next up, I had to remove the end caps. I at first thought heat might be required, but I used paint stripping gel to clear the paint from the screws and hey presto, they worked loose.
The signal must have fell at some point, as it is dented in on one side, the base cap and fixings are in a relatively shoddy way too, but nothing too major, I was able to straighten them out with a bit of hammering.
Next, I sanded and re-sprayed the black visor/door assemblies.
I also sprayed the white end caps and the white visor/door, and then hand painted the inside of the visor black. It actually turned out a lot better than I initially thought for a hand painted job.
I next sprayed the body - as you've probably gathered from the pictures, I had already given the signal an initial white coat to see what the signal would look like with the white parts, which I then used as an undercoat and primer.
Having repeated the above with the black sections, I was able to remove the paper and tape.
I rewired the loom, using modern flex, as I wasn't happy leaving the cloth wiring inside. I spliced it to the wire that was already attached to the sockets.
I made sure that the earthing connection was made.
I've terminated all the aspects together for now until I get some form of controller sorted.
I re-assembled the light, and turned it on!
I might have a look at sorting that light spill where the doors don't meet the head cleanly due to the damage, but I'm not sure what can be done for now.
. But I love the europe & uk signals. 
