One person's scoop is another's BS....

Basially, you could do it on any bike you please.

One big plus in your favour, is that you are probably better trained at packing light than most of us on here. So whatever you choose will be lighter packed than the same bike in someone else's hands. If you have that skill don't loose it: for many on here is the Holy Grail and harder to come by!! (me included)

My advice would be set a budget (don't shy away from used bikes), and then look for comfort for you, tank range, and reliability. Simplicity will lean toward higher relibility, but is no guarantee....

Beware reliability reports. In retail, it is known fact displeased customers make more noise than those satisfied, so you will always here more made of things that go wrong than right. It makes knowing how true and how widespread a problem is very tough to determine.

Off-roading: only you can decide what is off-road biased enough for your needs.

IMO, you would be fine with anything between 400-650 single or twin. Very suitable models can be had at low prices leaving you more for the road. By all means look at reliability reports and specs to narrow down your choice.

Ultimately, it is test-rides that will help you decide rather than suggestions from other HUBBers like us, so get out there and try bikes out.

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Adventure: it's an experience, not a style!
(so ride what you like, but ride it somewhere new!)