PHOTO: Russell Crowe has been scaling back his assets in recent months as his divorce from Danielle Spencer is finalised. Photo: Supplied

If US talk show host John Oliver will pay $7000 for the leather jock strap worn by Hollywood superstar Russell Crowe in the film Cinderella Man, then how much would people pay to spend the night in half of his Sydney harbourfront penthouse?

Potentially between $4800 and $6800 a night, if Perth-based entrepreneur Sam Barnett has his way after he claimed he bought half the Sydney home of the Oscar-winner on the weekend amid plans to put it on the executive rental market.