Khariyya Maazin and her sisters are the only Ghawazee dancers I'm familiar with, and I'm trying to remember if I've ever seen them in any kind of headdress, beyond maybe a wide headband. I know there are other families of Ghawazee, but I can't remember seeing pictures of them. (I tend not to trust re-enactments or drawings).
So if it were me, I'd just go with a tribal headdress, in whatever style you find attractive. The photos posted above are lush and gorgeous!!! I'm not a tribal-style dancer, but it seems to me like half the fun is being free from cultural context & able to mix & match at will.