This morning Axiom Space announced the four crewmembers for Ax-1 (Believe they're officially going with a lower case "x") to be launched aboard a F9/Crew Dragon. They state it will be the first entirely private crew mission to the ISS. I guess these guys might be paving the way for Cruise and his stagehands. The earliest expected launch date for Ax-1 is a year away, January 2022. Robert Pearlman's article appears to be the most informative link.
Axiom Space names first private crew to launch to space station | collectSPACE
$55 million. I expect that is for all four.
With a very brief question to Elon in the article:
SpaceX announces first mission to space with all-civilian crew
Details on the why and who will be going:
US billionaire buys SpaceX flight to orbit with 3 others