I've had the bit's laying about for a bit and decided that the time was right, oh how wrong could I have been.
Typically I didn't take too many photos and those I did take were with my phone, but the link above has all you'll need. If you want a different colour use the appropriate plastic and LED's. I'm sort of wishig I'd gone for the Italian flag colours, but it's a bit more tricky to get the tacho in white.
So dash out, opened up and board out. So far so good!
As part of the job I put in LED's in place of the little bulbs, but they were such a tight fit I had to modify the holders a bit.
BEFORE

AFTER

They are now a very tight fit, but work just fine. Need to make sure they are the right way round to work, but they didn't go pop when in the wrong way, so that's nice.
Here's a couple of shots fitted to the holder


So onto the LED install and all's well that ends well (eventually). Initially I used a stiff wire that broke solders and pulled stuff apart, so I changed to a more flexible wire which was better.
My method of getting power was to solder the leads to the bulb holder cages and then reinsert, whih works as that's how it's working now. However there's not much room and I was a bit overzealous with the solder and created a short.
Interestingly, it's not a bit difficult to tell when you've shorted your dash, 'coz it smokes like buggery. Fortunately the damage wasn't too severe.
see the burnt track

Easily fixed

So all back together and try it out. Phone camera doesn't do it justice, the AF1 link is more representative of the actual outcome.


I'm happy enough, considering that for a bit I thought I'd fried the dash.