Auctioneer Jonathan Humbert said the bus, which can hold 35 passengers, has just 28, 000km (17, 398 miles) on the clock and it has its own auxiliary generator and air supply in case anyone attacked it.
The complex runs completely on solar power, courtesy of 150 Sanyo solar panels that provide round-the-clock electricity. ("We fire up the generator once a month just to see if it works, " Derek Joubert says.) Construction materials were chosen through an environmental audit: The furniture is made from Indonesian mahogany uprooted by the 2004 tsunami.