On the contrary, you can solve the tree problem with money. There are nurseries that sell mature trees -- most people though will not choose to spend $20k on a tree.
But anyhow, you can buy large-ish burlapped trees but they aren’t as healthy, often die, and nothing close to a 100+ yr old estate oak tree or a decades old rose garden. You just can’t make it faster, transplanting plants that old will kill them.
Most of the trees do just fine, and these nurseries will typically provide a warranty.
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.