actully...if anything I've overestimated the eventual cost of the container tanks rather than underestimating them. MOST of any eventual transportation will be by rail for the most part so fuel costs will be minimal although the estimate I gave was by rail to a pick up point close to the land we're concidering buying. (with over 80 containers needed for the house project this was an importiant concideration.) The shipping costs on a manufactured unit would of course have to reflect actual costs...however once set up...manufacturing costs will no doubt come down so the final costs wont vary by a termendious amount.
ANY monster tank construction project would be faced with the same zoneing issues that you pointed out.
Part of building a container home would of course necessitate having the equipment necessary to lift...move and place the containers as needed. There are dozens of companies all over SoCal by the way who will deliver these containers to your site for a minimal charge with purchase of course as long as you provide any needed permits and of course access for the truck.
Having just mixed and poured 3 complete additions to our driveway by myself I can also assure you that any needed foundation and/or plumbing is no problem at all.
Part of the stated cost of the project includes all of this by the way but like I said earlier...the cost is far less than a comparable site built unit with fewer headaches and with the ability to eventually move the unit if and when needed.
I stated previously that we are buying land for a ranch and are looking into an underground home built out of these same containers. So the engineering issues have been looked into. The ranch will be self suficiant and in an unincorperated area.
I seriously doubt that anyone living in a normal tract home is going to want to have a 20 or 40 foot long metal aquarium in the back yard in any case so the zoning issues are far less importiant to those people who would actully want to have one of these units.