Mature vine source?

[Dantheman]

Hello,
I’m looking to start a little backyard vineyard and have been searching for fruit bearing vines but with no luck, double a which seems to be highly recommended but only sells 1 year old vines, so is that my best option or is it possible to buy vines that are a couple years old? And if so where can I find them?
Thanks in advance

 

[Obbnw]

The vines grow fast - I don't think you will gain anything by planting older vines. They still have to develop a root system to support the plant.

For reference I bought 1 year old vines and moved a couple of them after the first year. The next year in the new location seemed the same as starting 1 year old vines.