The DR650 series of Suzukis has long had a good reputation as a travellers bike, but by the time they as old as the bike you are looking at, the condition of THAT bike is more important than it's reputation. Unles you are very sure of it's condition, then I would suggest a major overhaul of the engine, running gear, and transmission would be needed before I would trust it to a long trip.
Nigel in NZ
The mouth of a perfectly contented man is filled with .
-- 2200 BC Egyptian inscription