Hi everyone,
I have three paper wallets with 1 BTC on each. I would like to sell them for AUD$500 each.
What's the best/safest way to do this?
Use bitcointalk of course. Start a thread in Marketplace>Goods
https://bitcointalk.org/index.php?board=51.0 section with description of your offer.
And pick reputable Escrow service to secure the deal. This way you won't be scammed by anyone.