*Calling experienced growers* Help, grow room(tents) setup.

First of all; I am new to growing.
I am trying to have 2 at least 2 tents(4ftx4ftx7) or 2 5x5x7ft. And maybe an additional of another smaller tent if need be. And I am leaning to using hydro rather then soil. Ideally I would want one tent to be finishing flowering while the other tent finishes veg. So I can alternate. Once I get dailed in I am trying to aim for 1.5pounds+ for each flower harvest. Looked into getting a clg scorpion Diablo as a flowering light.
I understand that I will have alot of difficulty and probably some hardships with trying to start off big and with hydro since its my first time. Which I dont mind. I just do not want to buy things twice to upgrade or replace equipment because I can possibly hit my target goals. Some people say you can get 2grams per watt. Some say your lucky to get 1-1.5grams per watt once dailed in. Any setups and advice would be greatly appreciated.
And once again I dont mind struggling or failing. As long as i have the proper setup to meet my goals comfortable, the rest is on me.
So recommendations for anything whether that would be setups, lights, training, equipment and etc would be appreciated. Thanks

And I am aware yeild varies on genetics/strains as well.

Work on starting off with one tent first....get the grow going and start learning. This way by the time the plants are ready to go into flower, you can start getting ready to add the second tent and get those in veg. This way you wont have too much going on for a first grow and then you can plan and adjust what you need for that 2nd tent.