"Our educational policy must enable everyone who receives an education to develop morally, intellectually and physically and become a worker with both socialist consciousness and culture."
On the Correct Handling of Contradictions Among the People (February 27, 1959), 1st pocket ed., p. 44.
There are quite a few vendors around the world who are able to build/ship you a modern, quasi-vintage, or vintage bike. Some vendors are particularly suited to certain eras and certain customizations. The dealer that is for you is likely a matter of your geography, the bike age/components you are looking for, and your degree of trust in them (which should be based in large part on your learning which CJ riders were pleased with the bikes built by which dealers).
For those in the U.S. (and this likely applies to those in any country), it is very important that the dealer provide you with all necessary documentation to prove the bikes ownership/origins (such as to prove its real age).