Hi,
in my opinion each saddle bag or luggage rack as well as tank bag destroys the nice look of our scramblers - 800 and 1100. But if you like to go further then to the next cafe you have to start making compromises......
I would recommend you the installation of a luggage carrier (black color = invisible) e.g. of H&B and use the mounting plate of GIVI and the MAXIA 55l topcase. With that you have a waterproof luggage solution and you can remove the ugly topcase once you have reached your destination. You can also put a Ortlieb Rack Pack or similar on it - works fine as well (we have 50l and a 70l one, both tested already).
For me any saddle bags for the Ducati 800 modells (all of them incl. your desert sled) do not fit to the nice look. At my 1100er Sport I have the Legend Gear LC2 at both sides and there they fit also optically as the bike is longer and bigger - but at this a topcase looks terrible. I had a luggage rack on it and disassembled it after 1 hour again.
Have a look how our bikes look ....