If Hitler abandons the surface fleet, could he sell unfinished capital ships to the Soviet Union as Germany sold a cruiser?
Short answerPossibly for diplomacy or currency, but not once the transfer risks giving the Soviet Union a usable fast battleship near the approach to Barbarossa.
NotesThe historical cruiser sale to the Soviet Union sought political cooperation and badly needed currency. An unfinished capital ship could serve the same purposes in principle. The timing becomes the decisive objection: as Germany moves toward Operation Barbarossa, it has little reason to give the future enemy a working fast battleship. A sale remains possible as diplomacy, though it is unlikely as a late disposal policy.