A renowned British art historian has expressed his “willingness” to travel to Saudi Arabia to inspect the $450-million-dollar, shrouded-in-mystery painting, Salvator Mundi. The world’s most expensive artwork, owned by theGulf Kingdom, is thought to be a Leonardo da Vinci original. However, heated speculation among art experts has cast doubt over its authenticity. The piece, once believed to be destroyed, was bought in 2017 by a little-known Saudi prince, who was allegedly a proxy for Crown Prince Mohammed bin Salman (MbS). Martin Kemp, an art historian at the University of Oxford who originall…