The first change you need to make to satisfy your requirements is to set the Profile to "4:2:2". The other change you may want to make is changing the muxing mode to Constant just to ensure that your final product maintains the expected bitrate.
One other thing that I noticed is your VBV Buffer Size is too low. You should change that to 224. This is a bug in version 7.2.2 that was fixed in subsequent releases.
Other than that, I think you're good.