Hi Seb looking good,
you can also add a [!video=vimeo;vimeoID] vimeo url [/video] (without the ! in it) or use the little film strip icon in from the icon bar when in editing modus. Than the vimeo video is directly in the post.
If you are flying with a 4s 5000 mah or 6000 mah you can for sure set the timer to 4.5 5 mins and fly with your setup !