I'd go with the shipping containers,using hydro,once you've lugged tons of dirt you'll understand why.Fuck LEDs,go a mixture of HIDs for another year,wait till technology improves.
Miriclegrow is chemical filth,the easiest n cheapest way is fish emulsion and some seaweed extract,for under $10 you'll make over 50 galls of ORGANIC fertilizer.FEED THE SOIL NOT THE PLANT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!