Buggered if I can find the thread but there was one and a few of us upgraded the clock lights to LEDs which are just a straight swap-out, I replaced the white bulbs with blue LEDs which look really nice but if you're having problems with reading the clocks you may want to stick with white. The place we ordered them from was https://www.crazyleds.co.uk/ I've found my order and the part number was 1 x 12v T5 286 74 2xTop LED but I can't find these on their site now so you might have to contact them for the equivalent. I ordered 5 blues as I guess that's the number of white bulbs, 3 greens for the indicators and nuetral, and two reds one for the oil and one for the fuel as they didn't do an orange. Hope that helps.
Edit:\ AHA Here you go - http://foc-u.co.uk/index.php?topic=20051 - Even has a full installation guide
Edit:\ AHA Here you go - http://foc-u.co.uk/index.php?topic=20051 - Even has a full installation guide