Just a few thoughts for you Scott. Massive road trips like that are romantic, but they are also brutal and mind numbing. The last road trip I did lasted 17000 miles over four months zig zagging inside the US from Mexico to Canada (with a Jeep Cherokee, which goes anywhere) and I was fried by the end of it. Obviously 17000 miles would get you to the end of the earth and back, but frankly if you do it, it would be better to have a car, or motorcycle, or better yet a Jeep, and leave it there. Fly back. Aside from being brutal, and expect it to be, I'd say go for it, and take your time if you can. You only live once. No one will be regaled by you telling them the story of your sitting on the couch and drinking wine for the last few months..... Life is to be lived, not endured. Just my 2¢.