[TurdF3rguson]

You won't find a 50 year old American Chestnut in a nursery, lol.

And forget about 20k. If you find someone willing to sell their tree you're looking at at least 10x that for the logistics of moving a 20 ton root system.

[dminor]

You won't find a 50 year old American Chestnut anywhere lol, they were wiped out almost entirely.

[TurdF3rguson]

You'll find it if you look hard enough. Whether the owner will let you dig up their entire yard is another matter.