I would be flying out of San Francisco, CA. Willing to fly as far as I need to explore an amazing part of the world. I haven't narrowed down my budget 100% yet because I'm not sure where I'll end up monetary wise in a couple months. I'm thinking roughly $4,000 budget if that's doable for a trip like this. I speak some Spanish, ( I traveled Peru for 2 1/2 months) but no other languages. I remember the airfare for that trip was also the biggest expense. Appreciate the responses so far!