FINALLY
https://www.naxos.com/catalogue/item.asp?item_code=GP626
Though looking back at my list, I was wrong about how much was missing. I actually could have sword there were a couple works with Op. numbers that weren't reductions....but I don't see any. Still missing some (at least according to Ratner) reductions such as Marche Heroique, Le Rouet d'Omphale, Marche Militaire Francaise, March du Couronnement, Serenade in Eb, Elegy No. 2 plus a huuuuge amount of early short works and a number of later ones (all with no Op. number).
And I don';t even have anything called 'Bagatelle' on my list. Huh.
Yes, I've been waiting for this one too! There seems to be an awful lot of his piano music which needs recording. I believe there may be a further disc after this one - I hope so!