It makes more sense now lol... I just wanted to say something more than "what about them MF worms"! Anyways, I just had one of my best harvests out of Earthboxes but there was still plenty of room for improvement. For one, the plants got too big for the earthbox and I was having to water every other day and the soil would be dry, so I had to top-water. Such a pain in the ass!!! I have a winter set-up with tents that I might use them for, but I don't see it working out in my built room. I'm currently looking at totes that are 27-32gal but they go all the way up to 50gal. Do you favor the soft and flexible plastic totes or the hard and brittle, I imagine the soft. Also, that was an awesome idea about the drainage pipe but I could only find the stuff with the sock cover, I think that it only cost more so no biggie.
Last thing, are you still using TM-7 for foliar feeding. I have something very similar that I have been using and I just wanted your input. I'll tell you what I think and my wife(houseplants) confirmed it for me, micronutrient spray works well on foliar applications but I can cause problems in the soil. I sprayed the SIP's with a plastic cover, but when I sprayed some open pots, I think that the run-off affected the soil. They were small pots with about a quart of soil. I was afraid to use it again, but I think that I will be fine if I keep it out of the soil. Really though, anytime that I tired to use chelated micronutirents in the soil it just goes to shit on me. I think that I found the reason why if you are interested. My soil tests confirm that I am always low in Manganese and I have been trying to fix it with stuff like TM-7 and had problems. It fucked me up because everyone was saying "Make sure that you chelate your micronutrients" but it never worked for me. I came across this article and it explained why TM-7 works as a foliar spray but not adding it to the soil. I'm specifically talking about the section labeled "Fertilizer sources of Manganese"
http://corn.agronomy.wisc.edu/Management/pdfs/a2526.pdf