97stocker4now:
SpeedHut.com makes some overlays that do not require removal of the needles. I had them on my car and I really liked them. Eventually, I tired of the white gauges and went back to stock. The key is to use 1/4" square pieces of 2-way tape to hold the overlay (there are three pieces) in place. Once the cluster is put together, the tape is not really needed. You need to keep the tape out of the visible part of the overlay or it will show up as a slightly darker spot than the rest of the overlay. Even though the instructions say not to do it, I tapped into the illumination wire so I could turn the brightness up and down. Doing this can shorten the life of the overlay transformer so be warned.
Track down (PM) "Randy Stinchcomb" here and he should be able to find one for you. I don't know if the part is obsolete or not. You can also try "performancepartsinc.com", they are good guys and have a lot of hard-to-find parts.
HTH,
Chris