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The daft thing is that I have access to a shop floor full of ladies who are most adept at swapping out Surface mount LEDs and other components, we do 1205 size all the time to correct for LED brightness manufacturing tolerances in the high end stuff we manufacture. The LEDs that come off tape and reel on the PCB stuffing machines vary too much unit to unit at times and the difference can be seen if you are fussy.
And I could pop into our repair department to look at the PCB/A under a microscope to diagnose any dry joints or broken tracks myself.
But, I don't think I'd want any of them to remove the Needles.
As you've said the stepper motors look really easy to damage, and they both work perfectly at the moment.
A specialist instrument cluster repair place looks like the best bet despite the resources I have access to.
Nasher.
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Heaven doesn't want me, and Hell is afraid I'll take over. 
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