OK, first correction, that will equal abt 50watts per square foot. That is a good amount of light for your space. Not sure what you consider "good size plants" but yes 2 maybe 3 plants will fit that area.

To build a partition consider foil faced foam insultion boards abt 1" thick. It cuts easy can be taped to seal and has enough structural strength. As to cutting holes and stuff in a rental...you are on your own. Good luck.
yea by good size plants I mean 2-3 feet at end of flower maybe... for a partition i was thinking some heavy duty black plastic that would either be stapled or nailed in on one side and then velcroed on the other side.... your thoughts
If you have space invest in a small 10 x 10 green house or equivelant. More info if you think about coming out of the closet. LMAO
i wish i could but that might be out of my price range and my house is completely surrounded by woods so i wouldnt have enough sunlight