Setup looks good man, do the basics get the right lights, pick the right seeds, and get the right soil. I know you told us all ur light system, but I am only a simple man basically saying I haven’tgot a clue how strong your light wattage is I just use 3 200watt cool FL during veg. If growing plants using bag seed or from friends be very carefully you don’t have much room to play with, if buying seed I would say buy a Indicia strain for such a grow space. I think you will also need to flower your plants when they get to around 6-8 inches tall before turning to 12/12 and if they start to grow out of control meaning grow upwards very fast either during veg or flower try to bend them. Some say Ur plant should grow at least 2/3 cm a day. I have grown some plants that grew 3 inches a day, like I said depends on strain as well as other factors, hope u can fit two in as the more the merrier and hopefully end up with a nice little bit of BUD, good luck on you grow man.