Hello; The concept of the steel-trailer is not that new. As a truck driver back in the late 1999's I drove containers with removable floor-parts and an included foldable tent to transport steel coils. When empty the containers could be folded and stacked up so 1 container could transport 10 steel-containers. They also drove with tank-containers which could stay at a temperature of 85 degrees Celsius by connecting the tank-circuit to the cooling-circuit of the truck. Therefore you didn't need an extra power unit to keep the product in the tank warm. They were very innovating back then.Some interesting kit. Although I don't think the gas truck stabilizer wheels will catch on!