It all depends on what floats people's boats. I expect that some people love the project of doing all the cutting, welding and restoring. Others just want an Escort at the end of it.
To do mine will probably cost me $4000 by the time I bought the shell, replacement panels and consumables. I am doing it as a project and learning exercise so I do not value my time. Others might.
I would be talking to the transport departments in each state to get some clarification. Really it is just a bunch of replacement panels but pre-welded together........