question on tent

im thinking on getting a tent so i could get better lighting for my plants.. i already have a 400 watt hps or the tents already precut or do i have to figure out a way to hang the light

heres my tent maybe u can get a idea ...

one more pic

Hang it and remember to get a fan. Fire=bad

Tent with a flood table and 1000W can yield ~2.5 pounds every couple months if you put 12 plants in 3 gallon pots. I've gotta believe a 400 would at least provide a pound.