I got the kit yesterday, looks very nice but will have to change the motors to "high torque" as they came mounted as high speed (easy enough to change). control panel will be a bit of a challenge to mount while covering old switches and still be clear behind it but I think it will work.
Now for the mounting question..........It appears it will be REAL close to bolting right up. Distance between "pads" on legs is almost exactly the same as the existing mounts on the trailer. Worst case is a bit of grinding on the pads with an angle grinder to gain some clearance.
Will get into it next week after work, going to see the boy and granddaughter this weekend and help plan a wedding.