Yeah, I was just suggesting because OZ's usually cost a fortune (and I'm sure I read that you didn't have a job somewhere so you'll most likely be tight on cash) and Dezent's are some decent looking budget alloys (as budget as alloys get anyway).
Go for 16"'s, I don't know about the Grande Punto but I know that 17"'s aren't good for 1.2 MK2 gearboxes (I presume it'll be a similar thing tbh).