Hello.
To my knowledge not many fisheries are going to like you having their fish that high off the ground.
Are you able to get some waders on and get in the water. With a good unhooking mat or retaining sling. This would allow unhooking and photos without any risk to the fish. I'm sure the bailiff/owner would/should adapt a swim to allow you to enter/exit the water safely in this regard.
Fair play to you buddy
Good luck ginger, you seem to have the key to that water, so go with your gut!!
Personally I'd try to avoid having a line going through your spot, but it might not make any difference!!