Sounds like your coming right along with your oven. Where did you intend to put this giant shipping container of yours anyway? Outside, somewhere exposed to the sun? How hot you think it might get inside one of those containers? Way over 130 I can assure you of that especially in the summer time. With that in mind you will want to be thinking about cooling and venting this sucker real well. It's gonna be hot and stagnant in there. That's my first impression. Past that this your choice of containers does not necessarily lead one down a certain path of how to grow. Take your pick, consider other variables like access to water, distance away from you (as in how much of a pain in the ass is it going to be to be there each day and care for them or do you want to not be there but every couple days). Those variables decide what style to pick. You have only complicated the issue and bought a very very large tent that in all likelihood isn't going to be all that useful to you. You will need to supply your container with everything you can think of to properly control the space. This might be your intention all along though but it wont be cheap.