Just read "in general"... research, for yourself, what Urals are about. Ural has gone through a lot of changes since 2000. All I'm saying is, decide what you want the rig to do, and learn about what you want to buy. Hook up with SS forums, CURD, or Russian Iron, run some searches for discussions like "what should I look for", "problems", etc.
ADV Rider Hack forum is probably a better place to research "all" rigs, certainly more diverse than the "russian oriented" sidecar sites. If you're not a member join. Again, it's free.
http://advrider.com/index.php?forums/hacks.56/
Another "general" sidecar source would be
The United Sidecar Association >
http://sidecar.com/mbbs22/category-view.asp
Foremost, keep in mind what was mentioned above, Urals are essentially unchanged since the 1940s (better brakes, electronics, etc) they were never intended to maintain modern highway speeds of 60mph; they were war machines intended for undeveloped roads. They can carry a load and will run 50-55 all day (65 in a pinch and for short distances). They operate best when driven in a "deliberate" fashion, much like old airhead BMWs.
edit -
It was been quipped that 2WD will get you about fifty feet further,
where you shouldn't have tried to go anyway, than 1WD...
