Scrap: Wander around in Sithyrya or the Akra subway.
Hydraulic Gear: Beat the thugs in Akra.
Pure Energy Crystal: Buy at Akra subway.
Corrupted Energy Crystal: Feed crystal's to Hakkon.
Thunderite: Pirate base drill room.
Graul scale: Enemy drop at the Sithyryan Ruins.
Sand Wyvern Scale: Enemy drop at the Silent Plains.