upgrade to factory rallye gage backlighting
I did kind of the same thing only in white gauges with florescent orange needles and super white LED's.
The gauges are aftermarket but installed in the factory holes.
The speedometer is a totally different animal also, after I got done messing with it. :D
Those strips would have made it a breeze, so thanks for posting this because I have uses for those. :D
These are lit and not lit, and oh baby can you see them.
I have also since done the clock with the same white face and orange hands, but still need to get in there and hook up the lighting power to it.
Each one of those gauges has a custom mounted LED inside them instead of the bulbs they come with, and the speedometer has the two factory sockets with LED's and a single LED built into the very top of the housing to balance out the light in the center of the speedo face.
They do dim also.