Ross Tribe

They are often cut with a plasma cutter to install doors and windows. You can then weld the frames in steel back to the container if you extend the frame all the way to the edge. Note that I live in Australia where steel is relatively cheap compared to wood. It might be more economical to do it in timber where you are.

I've had plenty of containers taken too and from my property. Here in Australia at least they are usually moved with a tilt tray truck. The truck can winch the container on or off the tray to put them in a fairly accurate position.

The biggest snag is needing the space for the truck in front of where you put it down as it not only needs the whole length of the container truck but also the length with the tilt tray extended. If you're getting a 40' container you'll want way more than 40' of space in front to put the container down. Make sure you ask it to be loaded at the pickup end with the doors on the correct end as well.

There are trucks that can lift them off to the side which I've seen plenty in the city when I worked with a logistics team but in a more rural area the flat bed tilt tray is more common.