Your hip height looks fine to me.
I've been deadlifting sumo for a while now because I got stuck and frustrated with my conventional. I am back actively trying to improve my conventional form.
I am trying to squeeze my chest up and flatten my back so hard but when I go back and review the video, it looks like crap. Any suggestions? I feel like my hips are too high but that's where they end up after I push my shins into the bar.
Deadlift 275x3 on Vimeo
Your hip height looks fine to me.
Agree with Carson ... Your anthropometry has you set up just the way you need to be. Hips are fine. You don't need to lean back so hard at the top and you need to try and get some extension in your back before you start the pull.