You must have the nerves of steel to go into such a project
I have gone through many restorations to have the patience any more, and have no clue as to the value of a true sunroof Pagoda.
But by all means if your are serious about this, you need to ask for the body number as well as the hard top number to do the homework properly, and if he does not supply them, I would pull on my brakes!
Good luck