Very enjoyable report! Derek pointed all us Radian lurkers to this thread, I'm sure I'm not the only one really enjoying following it.
I'm on the bike after the bike after the bike after the Radian (and that doesn't count the dirt bikes), but being my first "real" bike, the Radian still has a special place. Crappy brakes, jello frame, fussy petcock, flake side stand, slippy clutch, and random suspension springing included.
It actually isn't a bad choice for this trip. Low seat height, air cooled simplicity, well proven and simple powerplant de-tuned from it's racing roots. Adventure riding bikes are over rated for adventure riding (and I say that as someone who owns one). The Radian can't possibly do this ride, it doesn't even have a beak! You can have an adventure without a beak!
Thanks for sharing your adventure!