I couldn't agree more. Unused toons and oddball factions are great. It's just too bad they're usually unused for a reason. In fact, I've been afraid that I'd end up getting URoRRuR'R'R for free in a bronzium simply because I know that's the only push I'll need to go full court press on developing Tuskans myself.
I know for me personally, I would use Farmboy Luke just because he's another toon I farmed but don't use. His stun would work with URoRRuR'R'R's unique. Old Ben fits from a Tatooine perspective and would help to keep the other Tusken's alive longer and keeping T.Raider's bonus offence as high as possible. And on that note, I suppose Nebit does as well.
But as for a what about running Acolyte/Zombie? Every time another unit is defeated, all Tuskens get TM and recover health under Shaman's unique. I assume this applies to allied units as well as enemy ones. Obviously Zombie does the taunting and dying, while Acolyte provides the 2nd NS needed to bring NSZ back and stealth to ensure she doesn't die herself.