uprooting a cycad or Sago Palm

We need to move one of these palms and Im wondering how big and deep is the root system? It's about 4 feet tall and as wide.

Multiple trunks?

No, just one trunk about 10 inches diameter.

I wrote a fairly detailed description of how to move a sago here ( http://davesgarden.com/community/forums/t/967215/ )

If the trunk (Caudex?) is 4' it will take a few people to move. When I did it, we wrapped an old thick blanket around it, then laid it down on another sturdy blanket. With two people on each side and one on the root ball, we were able to carry it by holding onto the blanket.

Hope this helps!

David