You might want to look at a single one-pot autopot with and air dome. Or another pot that you can put and air dome in to. A big plant will fill up a 2x2 easily. Just one plant. And I bet even with your first grow you will fill up that tent no problem.
Autopot one-pots come in a package with rez and all tubes and fittings and 4 pots. But you can also buy just one of the pots and a tray and aquavalve along with fittings etc (from an aquarium store) and make your own rez from storage containers from walmart. And just put water in the rez instead of a nutrient feed.
One nice thing about autopots is after 3 weeks of hand watering you turn on the rez and you don't have to hand water any more. Just load up your rez with water and it will water itself. And as a newbie who might over or underwater your plants these pots take that risk out of play. And the air domes help grow bigger better plants too.
I started with some sort of smart/air fabric pots but switched over to autopots. Auto flowers, auto pots, auto cob lights. Auto everything for me.
But really I think just pick a pot and soil/medium that you are comfortable with and the price/cost is in your budget and don't worry about other than know how to use what you decided on. The more important parts will be your growing environment, seed genetics, watering and nutrients, lights, forced fresh air in and exhaust out, plant training, light distance, temperature. And these things will be things you probably learn the hard way on your first grow, but you'll learn things you'll never forget about and future grows will be X times better because of the dues you paid first.