We eloped to Broome and got married on a beach. It wasn't at a Registry Office but was for all the reasons you listed. It was only myself and DH.

We had the celebrant and a photographer, and one other witness (the photographer was witness #2). We had to do the "Notice of Intention to Marry" a month beforehand and provide the Celebrant with our Birth Certificates. That's all.

You can take friends/family as witnesses, but some places will provide witnesses for you - I'm sure the Registry Office would do it. Our celebrant charged $25 to provide one witness.

As for family reactions - 99% was positive. My Mum was a bit hurt that I had kept a secret from her but overall she was happy. I think it's hard to be upset about a positive event - and besides, what do they want you to do, turn back time? My Dad was thrilled - "cheapest wedding ever!" was his first reaction. And FWIW, two years on, no one cares. It's important for the couple, but no one else really cares, do they? I don't sit around reminiscing about other weddings I've attended. In fact, I find "normal" weddings a bit over the top, and am happier not to attend tbh IMO, if the couple are happy, that's what's important.

GL!