I have read that the next Mexican president is trying to sell the B787 that serves as presidential transport, and that it was already made an offering to Boeing for it.
As far as I know, the VIP/presidential aircraft are more or less custom made, so it's hard to imagine that anyone would buy it (I'm guessing an airline would retrofit the plane for his own configuration and that would be more expensive than buying a new plane).
But perhaps the manufacturer would use it for leasing purposes.
Then, it is viable to sell this presidential aircraft (or any other)? How much can be paid for it (compared to the initial value)?