The Russians made an offer sometime back to Amazon CEO Jeff Bezos to see how much he wanted to go to the moon - $200 million to circle the moon in a Soyuz spacecraft. When Mr. Bezos said he wanted Russia to test the mission first, the Russians agreed for another $400 million. I guess anything is possible with a few dollars on your pocket.
Of course, Mr. Bezos said no and now he hopes to create new space tourists via his company Blue Origin at a much lower costs. I think this is a much better way to spend his funds.