My Brothers take a look-WOW!! Tap on the little circles and tour the cabin. https://my.matterport.com/show/?m=cak3WNCTyWn&back=1
This is not a personally owned 777. It is Crystal Cruises which does special tour deals. There are full VIP personally/corporately owned wide bodies. Las Vegas Sands has an A-340-500 and a 767-300. They may have sold their 747SP. There is a 777-200 and 767-200 operated by a US entity for a foreign owner. Walid bin Talal has a 747-400. Abromovich has a 777. Multiple in the Middle East. Multiple in Russia. A few in China.