A Wokka, a 250 foot line, hook to the rear bumper, two minutes....no muss....no fuss....and one very muddy Rover back on solid ground!
Just be prepared to make sure the thing lands on all fours as it is set down!
We have done that with Five Ton Three axile military Trucks before!
Cheaper alternative.....tracked excavator....a long steel cable....a pair of snatch blocks.....use the bucket to pull the cable or back the excavator....and Bob's yer uncle! Tie onto the frame of the Rover.....and not the bumper!
Have been there and done that!