To extract the damping cylinder from Trophy forks I used a 30 mm hex nut clamped onto a piece of 12 mm studding with a couple of lock nuts and two more to hold against the torque of the 10 mm hex key from the bottom end. You would be amazed at the amount of crud that comes out even if the oil is changed occasionally. The official tool is 3880090.
If you use 20mm threaded rod you just need 4 std nuts ( 30mm AF ). Cut the rod 18" long and Lock 2 nuts together at each end Job Done
Seal on right leg leaking so I thought I would try the self tapper seal removal trick. I used a long series (4" long) 3 mm drill bit in a cordless drill, then two 1" long screws and inch the seal out a bit at a time with a crowfoot lever ( like a "J" shape) While the camera was out I took pics of the special tool for taking the forks apart.