1981 instrument cluster part
From Paragon Parts catalogue. Part 11102 is the gasket. I was not able to find a photo for an ‘81 but the box shown that would be against the lense of the console.
Part number 11102 in that illustration is the 72-76 "Fasten Seat Belts" warning lamp lens. The "Instrument Console Gauge Lens Gasket" you referenced was Paragon's part number 10980 and is not the gasket used with the warning lamp housing, it is the gasket that goes between the large lens that covers all five gauges and the center gauge bezel. That lens gasket was only used on 68-76's, not on 77-82's with the plastic center gauge bezel.
The little blue (sometimes white) plastic lens housings you're looking for have never been reproduced that I'm aware of. You're only option is to find used ones. The center gauge bezel lamp housings you need to find were GM part numbers 25017833 LH and 25017834 RH. According to the Corvette Parts Book the housings were unique to 80-82 center gauge bezels only, though I think the housings from the 77-79 gauge bezels could be made to work, but the the ones used in 68-76 metal gauge bezels probably wouldn't work.










