Ok, how sounds human Jedi 2/Scoundrel 3/Dark Marauder 1. Basically a jedi drop out who never got own lightsaber and later on becomed rogue who then learned hwo to channel the foce in more primal fashion (by gaining rage force ability at 6lvl). He would likely use just vibro sword and blasters and not appear even jedi expect those whit keen eye could detect such training background.