Just a thought - without too much cost incurred in range tests, could a portaloo ( obviously, used ) be dropped on Portillo via GPS and link/ designator etc by an MRA4 ?
Just a thought, but would be a fitting end to someone once dubbed ' the human oilslick '.
A video of the occasion would probably pay for the flight, and who knows if Nu Labour stay in power knighthoods all round for the crew...