From what I have found on
GMPartsCenter.net, you will need the following parts:
1. GT front bumper cover - #88975666
2. GT fog light assembly - #88975670
3. GT lower grille - #88975669
4. GT lower extensions - right: #88975664 / left: #88975665 (each lower extension includes mounting nuts)
5. GT outer grilles - right: #88975667 / left: #88975668
The wheel well liners ("fender liners" according to GM) are actually the same. The only thing I couldn't find that may possibly be different is some or all of the plastic covers that are on the underside of the engine. These could be different since your Base has the 1.8L and GTs have the 2.4L. To be sure about what exactly you would need for this swap, I would contact
GMPartsCenter.net.
2009-2010 GT
2009-2010 AWD/Base
Your best bet would be to find a
2009-2010 Vibe GT in a junkyard and grab all the front end parts of it. Buying everything new through GM would obviously cost alot more.