I guess you are very lucky with your padrino. I saw mine once at a party and that's it.
Finding an apartment/house for 3 people is tough especially when you don't speak Spanish. It took us several weeks to find. Apart from that we had to pay $3600 usd upfront for the house. As many people mentioned above you have to bring at least 10K to Chile.
Our padrino has been ace - we drink with him every week and he drove me to the FIDAE air show last Saturday. We seem to be an exception, many others only meet their padrino(/madrina) once or twice. As ever if you put time into a new relationship with a stranger there's a chance it'll pay off, you have to work at it (and accept it might not work out).