Any ideas or suggestions

Hello everyone I'm going to be running a 5x9 tent with two gavita led 1700e.

I was wondering what other equipment, pot sizes will I need to pull about 2-3 pounds. I will be using original blend for veg then super soil for flower.

You can start off in solo cups then transplant into 5-7gal fabric pots. They are better for aeration. If tent is over 7ft tall maybe 10 gal pots.
You need a nice ventilation system. Intake/extraction fans with carbon filter if smell is an issue. for that size tent i suggest an 8" exhaust and 6" intake fan. (Gonna need appropriate ducting)
Humidifier/dehumidifier (An environmental controller can help make the use of them a breeze)
PH pen/TDS-EC meter to calibrate feedings.
oscillating fans to circulate air in the tent (Clip on fans mostly used)
a scrog net set. 4 inch and 6 inch holes. 4 inch for lower training, and the 6 inch for support up top.

I'll let others chime in on whatever I left out.