If you play Arkadian Warriors, PLEASE PICK SOLDIER. It makes getting to 20 so much easier compared to the other classes. I have done many shop runs and Gorgon runs to try and find something better, but the best gear I have found for the soldier is...
Warlord's Fiery Blade 96k
Artemis' Chestpiece 96k
Warlord's Battlehelm of Doom 91k
Warrior's Emerald Aegis 91k