You're welcome.
What loyal Toyota owners say and do are two different things. Anyone that has one for a long time, ask them to see all the repairs they have done over the years.
It is like anything else, as long as you're willing to put the effort into it, you can keep running for a long time. Sure mine has close to 400K on it, but it has taken some effort to get it there, and to keep it going. Honestly I am tired of working on it, but I am also too cheap to buy a new one. $35K for a new version of what I have, keeps my POS running for a long time. When my broken collarbone heals back up. I have to fix the front coil-overs [YET AGAIN!!!]
You could do what my buddy did for your Alaska to South America trip. They are traveling all summer, bought a used V8 4Runner, did some minor repairs...and is going to to sell it when he is done. Knowing him that SOB will probably make a profit on it..he is "one of those" guys...me *sigh* I loose money no matter what!
On trip like the one you're describing...the vehicle is going to be roached by the end of...sell it in SA, and fly back.