i would go with the lighting i sugested. mylar is what what you want. get the cheap space blanket. as far as the distance to the lights keep the light as close to plant as you can. no further than 3.5 inches away. install the screen a week before flower. when the plants are 3/4 the way up to the lights.. for a grow that smal a small digital instrament that mesures tempature as well as humidty... you may want to utilize the whole box for your plants...to do this drill out the case at the top put your bulbs through the holes and keep the fixture outside. for the container containing soil , cut out the bottom leave the pot underneath let the plant be the only thing inside.it will be easier to water. you can just glue some mylar around the hole on the inside so the stock is sticking up through the mylar. make sure those fans are providing enough ventilation.the only problem i see is keeping your temps under 75. make sure when you flower you are reading the temps at the top of the scrog screen so you dont burn your buds.