There seems to be the "will" and you no doubt know the "way".
I would hazard a guess that there aren't a great number of us that
can "house" that huge an organ, but since it actually is a combined
instrument (to date) of 5 separate organs, could "chunks" of it be
made available such as has been done with other large Hauptwerk
organs, each being individually, so called, complete instruments?
Agree with waiting for Version 5 plus the holidays to be completed,
works. OTOH, "pre-promotion" is part of a strategy as well.
BTW, referring to that above spectacular concert, to anyone
watching it, make sure you watch the final encore where the four
guest organists alternate (switch playing - live) one after the other
during that final selection, doing this as if it were just one
organist is really neat.
Thought the gal doing the page turn bit for the one organist did a
great job, much better than the electronic types.
Rgds,
Ed