Assuming you mean 1973 Ventura, some parts will (door skins and quarter panels, for example)
No
not without modification
Yes.
No, they are 2 different bodystyles
Yes it will bolt right on.
Yes.
they should fit as it's the same body.
Yes!
If it is the same bodystyle, yes
It should as it's basically the same body.
Not without modification. The 1973 and 1974 body styles are unique in the Nova series.
I really doubt it.