Why are the prisoners assembling things, when the Empire could just use droids, like the Geonosians used to build droids in AOTC? We do see plenty of people doing manual labor, so maybe that’s just how the economics of droids works in the galaxy, but it wouldn’t shock me if all their labors were actually pointless and the inspection process in a separate facility is just droids disassembling them and reassembling them properly.

Also, Keef Girgo, though surely a perfect Star Wars Name, is a little too similar to Greef Karga