I am looking to start a tree farm in containers to resale to lanscapers etc...

I want an inventory of 10,000 - 40,000

I want to start from seedlings and plant in 1, 3, 5, 10 and 20 gallon containers

Oaks (Red, Live, Sawtooth, etc...), Bradford Pears, Maples etc...

Should I look for an existing tree nursery? Or just Buy/Lease 10-30 acres?

I am in Midlothian, Texas just south of Dallas/ Ft Worth...

Any advice?