I would ping Dennis on the method you are referring to.
I recall seeing photos of two guys using 2x4's and rope tied to each leg individually moving the base.
But, if you have a cement pathway, is it not wide enough to roll the KK sideways on it?
Or you can buy 3 sheets of plywood and leap frog the plywood sheets as you roll the KK on them.
I'll go see if i can find my notes but I did this one for my first day of retirement 4 years ago. It was great, I bought it without the head. I tried one with the head still attached and it was really creepy lol I will say this, I think if i do it again I will finish on the upper rack with skin side up for a few hours for a crispier skin.