From google's description of Villa Antinori:
Blend: 55% Sangiovese, 25% Cabernet Sauvignon, 15% Merlot, 5% Syrah
So, you need 55% sangiovese, 25% cab sav, 15% merlot and 5% syrah.
Once you press and acid adjust, you could probably ferment that pretty well. Hopefully this year is a good vintage. I'd do MLF, of course.