Consider a very basic bachelor suite-like layout of approx 300 sq ft with a kitchenette [HTML_REMOVED] bathroom that meets code req's in BC. Irrespective of it being stick framed, prefab wood frame or a container structure, my experience based, on the design and coordination of rural and backcountry dwellings, resulted in the price differences for hard costs that aren't as drastic as one might initially think. Soft costs were the bigger issue; too many variables to list here.

That said, the notion of repurposing an old container is noble.