Ok, so teething problems over the winter...
Offside side indicator repeater stopped working.
Offside front sidelight stopped working.

Both these problems seem to be in the lamp connectors. They are quite simple in design and corrosion on the centre pin of both has caused the lamp failure. A simple clean up with a small file on the contacts has restored proper operation.

I've had the car on the road for 2 weeks and I am already drafting the Winter 2020 upgrade program :-)