Wanted a van for a family in Argentina/Chile to buy around November for a year

 We are a family with 3 kids, going to land in Argentina in 20.10 and stay in Patagonia at a friends house for a while. We thought of buying a van in Santiago, Chile,because we heard that it is complicated to write the car on our name in all the other countries in south America. What do you know about  it?  we are planning to travel for a year in a few countries: Argentina, Chile,  Peru and maybe more.  You can write us in this page or to our mail : [email protected]

thanks Elinor and Dagan