as a Fellow Swtor player I wanted to offer an outfit suggestion, just in case you wanted to use it(not for a LORA, i mean in game)

Vile Hunter's Helmet

Dark Legionary Chest(secondary black dye from underworld vendor at fleet station)

Fieldtech Gunner belt

Alliance Reconnaissance pants

Resilient Warden gloves

can't remember what boots I used but you can probably just use the ones from any of the othe sets

Firestorm HZ-77 lightsaber or similar dark lightsaber

it works for both male and female Sith Warriors, personally I'm more of a Knight player myself i just figured you'd appreciate the idea