Kuba Ka has optioned the rights to Lesley-Ann Jones' book An Intimate Biography of Freddie Mercury, and it doesn't take a genius to see why; when made up properly, the Polish-born performer is a dead ringer for Mercury, the wiry icon who rocked out on hits like "Bohemian Rhapsody" and "We Are The Champions." (Mercury--who grew up in Zanzibar, India, and England--sadly died of AIDS in 1991, but the songs of his group,…