Minimum gear levels and Questions about if this team will work to get CLS [Merged]

When I beat it, my R2 was t10 with number crunch zetad. Old Ben was t9, the rest were t8. Didn't have maxed abilities on anyone, most were level 5ish. Mods weren't that great either. The only tier I struggled with was the Old Ben tier, and I fixed that by dropping a bit of speed on Ben.

Number Crunch is probably worth one gear tier on all your characters (I would guess anyway), so I'd say you look like you are right where you need to be.