Oh One of my favourite subjects!
I would need:
Auto-tune. Slate Metatune would be a good starting point, if AH can source it inside Audiotonix.
-Distressor. Again Slate Digital FG-Stress is already a great model.
-Good Limiter with LUFS meter. Simplified FG-X Mastering would do.
-TrackSpacer style DYN8. EQ that analyses an external sidechain.
-Nicer Reverb. Bricasti M7-style. Slate has this already on FG-BM7.