Partner visa 820 - Strong relationship but lacking some evidence

Hi!

My partner (Viet, 29M) and I (Aus, 26F) are currently gathering documents and writing our statements for a partner visa, but honestly, the amount of information out there has been overwhelming 😅

I just wanted to get some general advice/opinions on where we stand. We've been dating and living together for 3 years (I think this means long-term?), have a joint bank account, lots of travel receipts/bookings together, and several friends/family willing to complete declarations for us.

What worries me more is that we don't really have:

• many photos together
• joint lease or utility bills (we live with a family friend)
• de facto registration
• and I've never really declared the relationship to Centrelink

Do we still sound like we have a solid case? For anyone who's been in a similar situation, what areas should we focus on strengthening most?

Any advice/reassurance would really help 🙏