Also bought a grill!
Im absolutely not an expert but can it be a stock GTA grill?[/QUOTE]
No, that's a Giulia saloon grille, and it's way too thick (deep), It can be made into a GTA grille by slitting all the way around it's width to make it about just over half that thickness.
I did exactly the same thing, with exactly the same grille, after carefully marking around it.
Did it with a cutting wheel in the Dremel, turned out very good, and about half the price of a repro, monkey metal lightweight GTA grilles available now.
Giulia Ti Super Rep yet to finish. BMW 2000 NK to Ti spec