Frankly, I admire you got this far. I've got the exact same issue. Could not figure out how to get the cluster out, so far. Please advise how you got to this point.
After that I'm afraid that's as far as you can go. DO NOT< EVER< FOR NO REASON WHATSOEVER< NO MATTER WHAT< pull the needles off the instruments. They'll never work again. And given that, I see no way to get to the LED light itself... That leaves only the tape, which I'm pretty much resigned to. I wouldn't really mind to much, if I just could get there. So please let us have your removal of the cluster, (even if I could likely find it with some research...)
Thanks in advance.