Hi David! Yes I remember our pleasant lunch quite clearly......and recall you clambering into the Plus8! Good luck with painting the clock face...a steady hand! You do have some skills I recall. At least the clock comes apart easily...I took the front off to strip and polish the bezel.
Cutting the hole isn't too bad but because of its shape there is no room for error..you can't straighten up the clock by turning unlike the usual dash clock!
I look forward to some photos in due course!
All the best.