If you want to share in the experience of recovering a 25 Pounder, see the video at the following link:
https://youtu.be/5m5_uRLBSDU
Some observations:
Rob L is a lucky man - first, his wife permits him to play hooky for a week, next he finds two guns and buys them before the rush of bidders, then both of the guns had wheels that turned (although one set of wheels had to be replaced - the nuts actually came off without a struggle), and the rain held off until the guns were loaded. Rob was assisted by fellow restorers from Ontario, who came along not only for the experience, but to help a guy who is well-known to help others in the hobby.
The video only shows the winch pulls and not all of the hard labour that went into keeping the lawn pristine, and the gun rolling. The slope in the video looks gentle, but it was fairly steep. Things went well, but it took some effort to move the guns safely. A look at Rob's shirt says it all. It was a hot and humid recovery, but very a satisfying day.