We have curves for Epson Exhibition Fiber, Epson Lustre, FotoSpeed Platinum Gloss, Hahnemuhle Baryta FB, Hahnemuhle PhotoRag Baryta, Harmon Gloss Baryta Warm, Harman Glass FB Al, Ilford Gold Fiber Silk, Ilford Smooth Gloss, JonCone Studio Type5 and others. We are partial to JonCone Studio Type 5 because we believe the surface is more "believable" than others. However, surface decoration is a personal choice and most users select a baryta because they like the surface of it. I am not drawn to GFS because to me it looks like the paper that comes out of those kiosks and I don't like my photographs having a surface texture. But GFS is super popular! Better by meaning prints sharp or something like that - we equalize those things via the curves for the most part. I think Type 5 and EEF are the best to my eye. So those would be my choices.
We do offer US Postal right on the website to AUS. You can write to Sales directly and they can give you some pricing!