Very cool indeed. I'm 4 years into a rolling restoration of my Father's car BE475, which started in a similar condition. I've gone to great lengths to restore the original equipment, materials and finishes, whereas most restoration businesses will replace almost everything because it's more cost effective given their labour rates.
If you look carefully on the Lucas parts they are all dated with month and year, I found recently that my car has for example the original starter solenoid and wiper motor. I enjoy knowing the car has the parts that it left Thames Ditton with, even if it take 3 evening to get them working properly! In my mind it's worth it.
I haven't seen a separate clock on a Ace dash before, typically they are built into speedometer. I note you also have a Delaney Gallay Heater, but without demister vents. These are very rare, but a similar unit was used in the Ford Prefect if you need spares.
If you are planning on keeping the current paint, I can recommend cutting it with 2500 grade wet and dry sand paper, then using a cutting compound (I used T-Cut) then finally polishing. My paint was heavily oxidised and the secret is to simply cut off the oxidised top few microns of paint with the very find sand paper. The colour will be almost completely restored.
Good luck.