Why not just buy 1 wanna get away ticket, 136 anytime tickets, and no-show for all of the anytime tickets? You'll get the whole plane to yourself, 3 FAs, and a refund for the anytime tickets.
Or just buy enough refundable tickets for all of the middle seats and no-show the refundables.
No CP or POS schenanigans needed. Just lots of (refundable) cash or points to outlay.
What rule am I missing here? (other than you'd probably be banned from the airline after pulling that stunt once)