[keg in kc]

I'll have to watch it again, I was not very awake this morning...

Spoiler!

But I didn't get 'clone' out of what they were doing. I thought they were infusing adult candidates with the Child's blood, and that they had all failed after about "a fortnight". Rather than clone cannisters, I thought they were storing the failed experiments for future study. Or executing those tests in a bacta tank.

Whatever the case is, I think Gideon is trying to give (or already has given) himself force powers. They clearly were trying to invoke Vader's helmet in the shot where the Dark Trooper armor was in the foreground.