"That was a small space, and I'm too big for small spaces," says drag queen Elaine Lancaster of a tiny bar on Lincoln Road where she worked recently. Sounds like Sunset Boulevard's Norma Desmond, who defiantly declared, "I'm still big; it's the pictures that got smaller." Lancaster, however, is referring not to her status but to her stature. She really is a big girl -- six feet two without heels or her Texas-size blond mane. Frequently seen on the arm of old Texas buddy Dennis Rodman, she arrived in Miami from Dallas nearly two years ago. You can catch her hostessing at Tuesday's "Revolution" at Red Square restaurant, Wednesday's "World Famous $1000 Strip Contest" at Warsaw, and Fridays and Saturdays at Bar Room. In her syrupy Southern accent, she's raconteur, comedienne, diplomat, and self-deprecating commentator on world events. But more than just the hostess with the mostest, Lancaster (a.k.a. James Davis) is a wiz at out-illusioning her fellow gender illusionists by doing some mean lip-synching. Batting her eyelashes, casting sidelong glances, smiling widely, wooing the crowd with her many expressions, it's no wonder she's been featured on television and in movies several times, has her own column in miamigo magazine, and lately has enlisted the services of an agent to advance her career. This diva is a glamazon who's got the goods to take her straight to superstardom.