FL Clusters can be replaced and the right electronics wizard can copy the key/immobiliser info over.
My DIS was badly faded/pixellated when I got the car and the clock display was intermittent.
Sean (steamship) very kindly sold me a donor FL A8 clock set which worked fine.
I took both sets to Greenaway Electrics in Belfast who were able to lift the S8 bits out of my clock set (gauges) and drop them into Sean's A8 set.
They copied mileage, immobiliser data etc. over and the repaired set worked first time.
http://www.greenawayelectrics.co.uk/
The pics in my album are of my old pixellated clock set dismantled post repair (as I like taking things apart to see what makes them tick!)
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Daily drive:
2016 Infiniti QX70.....a car that's even more complicated than my last Infiniti FX to modify
Current 'Project':
VW Crafter CR50 4 berth camper van
Previous 'Projects':
2006 Subaru Legacy Spec 'B' 3.0R,
1994 Ex-MOD Land Rover Defender, now "civilianised".
2000 Audi S8 FL
www.whall.co.uk