If I had to pick one of those I'd go the northern route. Southern ports are limited because there is nothing there. Starving sailors used to come ashore there, clime up and die in the desert. That place is so remote they sell souvenir t-shirts for having driven across. Here is a photo of me crossing on a bike. The GPS was on auto zoom. Zoom in and you'll see what I'm talking about. Yes, that's the entire southern coast, next turn a roundabout in 651K.
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