HI Nikki_B,
Did you know that MEL base is recruiting for cabin crew too. It would be different to flying for a private charter, but we have lots of fun anyway.
I don't know much about the groundcrew interviews, but do make sure you understand the culture of the company.
If you are using ground crew as a step into cabin crew just be aware that there is a minimum 9 month rule. You must work in one area a minumum of 9 months before applying to another.
best of luck
love SMILE