I'm game for this as well if its still up.
Since it looks like someone was interested in a female archaeologist, I'd probably run a female undergrad doing a summer internship at the dig site. Upper middle-class, enough money to to be a bit naive and have a taste of the lap of luxury but not enough to be aloof and haughty.
Hmm, as a secret twist, she spent two weeks as her Chem Professor's pet puppygirl to get a D turned into an A. It was his idea and she keeps that period of her life very, very secret.