Well, here is the result. They are not what I would call bright, but they are ok. I know the recirc button looks green in the photo, but it isn't, honest.
I do not like bright illuminations anyway, so when I get my VP dials, I will be able to tune them in to a similar brightness. I fitted two bulbs (soldered onto board) in the clock.
I will be looking into replacing the LED display with a blue or may be red one on the CC but don't hold out much hope. The mode selector LEDs should be easy to replace though.