.I'm planning a ride out to Bulgaria (three of us) and back in September. At present we were going to ride to dusseldorf and get the train to Vienna then go Hungry Romania Bulgaria. Can I get some advice on doing this? How long do you think we would need one way? Also do you think it's possible to rough camp some of the route? We are hardened campers! Also any tips or advice? My dad lives in Bulgaria and I've been there for years so I'm used to the roads, driving etc....

Thanks in advance

Thanks