Forgive my terrible graphics skills. Here's what I'm thinking. And I could be wrong, so let me know.
The background image is from the current CFTOB 2032 Comprehensive Plan. Areas in green are suitable for development.
The MK overlay is from Google Maps, scaled to fit the Comprehensive Plan.
To the west of the MK is a piece of land bordered on the west by Floridian Way, and to the east by the storage area for the Electrical Water Pageant.
I've added a red cross to this piece of land. Just the rectangle around that red cross is a piece of land about 1,000' wide by 1,500' high (about 34.5 acres), according to Google Maps. That doesn't count the stubs of land north and south of that box.
For reference on the right is the Yacht Club. Google Maps says the entire complex minus the docks is no more than 1,000' by 1,150' (about 27.5 acres). That includes parking.
IIRC there are around 630 rooms at Yacht Club.
So it seems like this piece of land would be more than enough to host a Yacht Club-sized DVC, with walking access through Adventureland.
Like I said, I could be wrong.
View attachment 786766