I've started to investigate farkling for the bike I don't even own yet. One of the must have farkles in my opinion is a rear rack. After looking at various options from SW-Motech, Touratech and the like I decided on the KTM 690 Dual Sport rack by Nomadic Cycle racks. It looks sturdy and unobtrusive. It's priced rather reasonably at $89. The only negative is that no one seems to sell in Europe.
The rack is drilled to accept Rotopax mounts which will allow to carry the reserve fuel easily and elegantly.
The rack arrived today. Looks well made and sturdy enough.