Route sounds good, fingers crossed I have a bike by the time you to my neck of the woods and I may join you for a beer.
The Guzzi factory at Lako Como - check out their opening times though, a very small window indeed.
Coffee in Davos - just for shits and giggles
Fucking (Austria) for more giggles - don't try and steal the sign though, it's well secured.
Budapest (if you've not been), almost on the way and well worth a visit IMO