The way the market is now, I do not think this will happen.
The HB B&B has been under intense pressure to lease for 6 months and a year. We finally did do a deal for 6 months: 15 Nov-15 April with possiblity of an extension.
I have a friend with a 2 BR apartment in a nice area but no way they will go for a one week rental. Furnished apartments in Santiago are like hen's teeth...
HB
I would suggest you look at Alberto's Suites Aparta-Hotel...they have some nice accomodations. Get back to me for contact info.