I was planning a bike tour to istanbul in May or June, via this route ish!
Belgium
Germany
Czech
Slovakia
Hungary
Romania
Bulgaria then down on in to turkey in fact if you look on google maps type in Dunkirk to Bucharest and click the walking symbol thats the route I was looking at.

The total trip is about 1800 miles and would take around 3.5 - 4 weeks. I was going to bring camping equipment on the bike and planned on camping for most of the time.

None of my friends either want to do it or have the time, so thought I would post in here before going solo!

Im not sure how much the trip would cost, didn't want to spend a fortune but not do it on a shoestring either.

I planned on cycling around between 90 to 120 miles per day

Let me know if anyone is interested..

Thanks

David