I have a wig - my hair is dark brown, not black. I do have a fringe, my hair is straight but I do have rollers. I have plenty of vintage clothing/lingerie/corsets and 6" heels. I'm just not quite as slim as the real Bettie!
I get called Dita all the time at work since I dyed my hair. I'm also a burlesquer and I usually dress in a 1950s style so I can defintely pull off a Dita or Bettie look. My hair's a bit short for Bettie and I don't have the iconc bangs, but I'm pretty good at the retro styling and I can get the vibe right.