In the video Matt does say it's in need of a full restoration. Basically you'd have to strip it apart, more than likely take the shell off the frame, repair the corroded sections of the frame rails, etc. and piece it back together. In the process you'd have to figure out whether some parts can be reconditioned or in need of replacement.
It would get expensive to have it done professionally.
I know there's guys who pick up short TAFE courses in welding, upholstery, panel beating, etc. and love this type of project. They learn and restore as they go.
Little things like the boot spears (unique to 58's) and front fender spears are missing though not crucial to get it roadworthy.
s