I have the 3 LP French CBS Piano Solos (plus trios) box and several of the Hep small group CDs, so I'm playing the cards I'm holding
Jim, I wouldn't presume to offer advice to you on whether to go for the Mosaic or not, except to say that you might want to step back and think about how your life is changing and how you may want to change with it. But you're no doubt already doing that.