I went through the same thing here. With our house going on the market next week, I finally gave up and had a guy rip everything up and put down new St. Augustine sod. He charged me $160 a pallet for the sod delivered, and about $200 a pallet labor to tear out the old and place the sod. It would have been less if they had put the new stuff down over the top of the old. I believe each pallet was around 500 sqf.