[Lynn Eades]

Lionel, you can get High Cube containers that are (of course) highr than a normal container. You can also get them with a galved sub floor.
My friends built a house with 4 x 40 foot high cube containers. they were new and had done only 1 trip from China. The floor was treated with a "safe" treatment. Some are not so"safe" to live in. You wouldn't know you were in containers from the inside. They used the extra height to put in an insulated ceiling space. Each container was separately wired and plumbed so that they could be separated easily for removal and easy re set up. Each container was plugged into a caravan park type power supply post. Check you shire's rules on "temporary" or "relocatable" If they are not permanent the rules are quite likely different. Good luck.
Btw. they clamped them together with proper turn buckles, and bought some U.V. proof tape from Australia to seal the roofs together.