How do I transplant lilac bush from family farm in Oklahoma to my yard in DFW area, treasure needs my backyard

I want to transplant famlily heirloom lilac plant from Grady county, Oklahoma to the DFW area, need help as to how, when and suggestions to keep this treasure alive. I have year round access to the old farm. Help me bring this to my home in DFW, I have a very green thumb and know I will put every effort transfering, planting and nurishing this part of family history.I need to have this in my yard

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