Looking at buying a 66'

[Arcticdude]

Everything will be used on something else. That's going to be the task, finding out what other vehicle a specific part is used on. In the documents section here, there is a catalog of the basic Bluebird parts, many of which probably fit that 66. That should cover a bunch of stuff.
As far as the windshield is concerned, get the window code off the existing panel and call a few of the bigger glass companies. That will give you a quick indication of how tough it will be to get a panel.
The FT motors were used for years in Ford trucks. Parts are still rather plentiful and they're usually an easy motor to work on. They're not known for speed, nor economy though.