Buying and registering a motorcycle in Chile

[timyarb]

Hello everyone,

I'm preparing for my first international motorcycle trip: a 1-month trek through Chile and (time-permitting) some of Argentina. Rather than shipping my own motorcycle, I plan on purchasing and a bike in Iquique and selling it at the trip's end. Since all things bike-related are the biggest wild card for the trip, I'd like to glean from the collective wisdom and experience here regarding buying, registering and selling a bike. Specifically,

• Tips on the buying, selling, registering process? (e.g. how?)
• How much time should I expect the registration process to take? Hours? Days?
• Recommendations on places to find a bike (Iquique-specific, online resources, etc.)?
• War stories?
• Other tips & tricks?
• I understand that one doesn't need a Carnet for S. America. Is this correct?
• Relevant rules & regs for selling the bike in Chile vs. Argentina?

I apologize if this is already floating out there in the HUBB but I could only find info pertaining to riders' personal bikes shipped into the country.

Any help is greatly appreciated! Thanks in advance!