I can totally see why you would want to celebrate a sort of homecoming with your bike by riding it in the town it was conceived. Seeing as how you'll be in Italy for a year, and don't need to ride your bike away from the arrival airport like a bicycle tourist would, I'd make the following suggestion. This should save you some dough and save your bike a fair share of wear and tear. First of all, take your bike apart. It will be easier to protect your frame and wheels if they aren't attached to anything. Box the frame, BB, and headset in one corrugated plastic carton or dedicated frame package with lots of padding. Box wheels in another like carton with lots of padding. Mark both of these items with large "FRAGILE" stickers or with a Sharpie. Pack the left over parts in bubble wrap and stash them in with you clothing. Make sure to get "PRIORITY" tags for all of your luggage. This helps to assure that your luggage will be packed in the plane near the baggage doors, will often be packed in last, and will come off the plane first.