If you’re ok with flying have a look at HAL Noordam Sydney to Seattle in a March 26 is an awesome itinerary. She also has a nice itinerary in January which I think is round trip Sydney.
The wall was a good 2 - 3 feet in front of me. Stretched out fully I could put my foot on the wall. On Air Canada Dreamliner we had about the same leg room if not more than Premium economy.