Hi
I am also going to Argentina 27.12.but we will be riding on the norths only,Salta,to San antonio de los Cobres,down to Purmamarca after going to the Norths Humahuaca,Iruya.Frpm there a bus to Salta (so we don t ride 2 times the same route)and from there to Tucuman
Regards saludos
Gerardo