Hi Jess
I would probably start by downloading the form and having a read through it. Basically you want to show them you have NO spare money to pay for this operation. My hubby and I are paying off our home, have 1 child and no shares or savings.
Once you see the form and read through you will know exactly what they want from you. With regards to being married is everything (drivers licence, medicare card etc) in your maiden name or married name? I sent in for ID purposes certified copies of drivers licence, medicare card, medibank private card, birth certificate and marriage certificate.
I accessed my super only 2 months ago so I know the process first hand.
Good luck