SMAC Ultra is nowadays replaced by NULL AC, its the same Dev working on it and its actually really nice, but it just costs sooo much.
Hotguard is leaked since a while now, the Dev wont continue working on the Plugin anymore, but he said that he will write an Extension instead in the Future.
I myself would recommend to use KACR without the Eyecheck Feature combined with LILAC, and Cow AC just for the BHOP Detection Mechanisms (the rest of the Checks arent that good, even the private Version)