https://i.imgur.com/iKdC58eh.jpg
Nice Ural!
It's 1 wheel drive.... Chang Jiangs are not that expensive. I paid $3000 for mine but it had not run for 10 years. They are a design from the 1930's and are high maintainance.
https://i.imgur.com/gLvy4hsl.jpg
You will have a hard time finding a 4x4 bike.
Whether they are copies is debateable as they are made with original German tooling. Many of the parts are interchangeable
4x4 Ural motorcycles do not exist, never have and never will.