If it were even possible, a candidate for a multi-computer setup maybe? How many DVD's would even a scaled down version occupy?
One of my favorite 'really big' organ installations was the Chicago Stadium Barton. Only the console now exists as the pipework was all destroyed many years ago in the warehouse where it was stored after being removed the the Stadium. The electronic "replacement" (I won't even refer to "it" as an organ) isn't even worth listening to.
I still remember Al Melgard playing that huge console. An "interesting" remark from my uncle, whom I accompanied to the stadium (as a youngster) for various events, said, you could actually "feel" the music of that organ in the men's room.
Then there's the story of a near riot that Melgard stopped by "opening her up". The organ was so powerful, that the glass in the overhead light bulbs began to shatter and "rain" down on the would-be rioters who ducked under the seats for cover.
The "almost" riot was as a result of a disputed referee's decision at a sporting event. Melgard thought he would be fired, but was considered a 'hero-of-the-day'. BTW, I wasn't at that "event"
I posted info about this famous organ previously, but for those who aren't familiar here it is again:
http://catoe.org/barton.html and
http://www.theatreorgans.com/BARTON/Rgds,
Ed