Yes, trackir and ezdok together are awesome.
Without weather software it's maybe a good idea to consider opus.
But Ezdok is far better, i mean it's not only cameras positions, but correct cameras movements in shaky weather or in heavy turns. The dynamic camera in opus is a little toy vs ezdok.
At the beginning i have took ezdok for camera positions, and after i was impressed by camera movements in ezdoks.
Ezdok is very powerful, maybe too much powerfull, and it's hard to tune it properly.
Opus do the job, but it's only better than nothing. It's easy to set, but it's a joke vs ezdok.
The thing to do in ezdok is to take a microsoft aircraft camera setting similar to the target aircraft, and after you can tune cameras properly, you will have the best. It's impossible to find on internet correct settings, so i think many users don't know how to set correctly ezdok and prefer opus.
After an update i re-open my opus, but all the time i relaunch my as2012 (sp2) and my ezdok. Maybe in the future opus will be the graal...