it's been done before. This is a fastback, but you get the idea (it's basically the same)
it's not hard, and you will need the entire front (all body panels) you will have to modify the fenders. S chassis cars are almost the same basically.
Now go away, and don't ask questions like this again or suffer the wrath that is Zilvia.
(I felt nice at this moment) ...yep just this moment