What is a good deal for ninja 400?

I am shopping around in SoCal, 400 with abs goes above 5k. The cheapest one I can find is 4800 for a 2020 one for 8k mi.
Then I did a research online and apparently that is still too high. So I was wondering how much is considered a good deal for ninja 400? As a beginner I know absolutely nothing about bike markets. So it is quite hard for me to argue price on fb