I made similar suggestions in the “Helping Mosaic” thread, for a set devoted to Williams’ 1940s recordings and Allen’s 1980s/90s dates. In the case of the latter, I know just the writer to pen the liner notes! 😉
Not an instrumentalist, but I also put in a plug for some kind of Betty Carter box—either one that gathers all of her pre-BetCar recordings, or one focusing on the BetCar material… is it owned by Universal now?