You can dig up some of the pups at least to give away. I had someone come to take out a 15 year old 8 ft tall Sago that was much bigger than yours. Mine got too big for it's spot. He was there all day. But he got 15 pups, 15 small plants and 4 giant plants. I advertised it on Freecycle. You did and it's yours. They are slow growers. That is why the larger ones are treasured. (The following week someone advertised sod on Freecycle from a new garden bed he was digging. I grabbed some up and sodded in the old Sago space.)