Adjustment of Status - I-485

We are about to start the process of adjusting status for my wife. She has been living in this country since 1995 and has not been out of the US since. She has a petition pending (her sponsor, her U.S. citizen brother submitted the petition before april 30, 2001 and she eligible for Section 245(i) adjustment of status )

which forms do I need to fill out?. I'm thinking I-485 and I-485 supplement A

Do I need to fill out form I-130?

We have been living together since mid-2011 but got married in the first months of 2016. I've been collecting evidence to prove "bona fide marriage".

Note: some of the documents below go as far back as 2011:

Joint bank account, utility bills under both our names, apartment leases under both of our names, I have her on my employer insurance (medical, dental, vision), she is the only beneficiary in both my life insurance and 401K, family pictures (both families) with dates on the back, travel itineraries, gift receipts, text message logs from phone company, school records where I'm listed as an emergency contact for our children (I'm not the biological father), state-issued driver licenses where it shows the same address.

Am I missing some other document to build a strong case or am I going overboard?

Another thing that I wanted to mention is that there is an age difference of 10 years and the education levels differ. Can this make our case more difficult?

Thank you so much!