Feedback Wanted: Two-Leaf Gate Design for Allerton Abbey

To Sum It Up:
Paul and I put our heads together and came up with a design we could both settle on for half of the front gate at Allerton Abbey. Please review and post comments and questions here.

More Details:
We're nearing completion of the fence repairs over at Allerton Abbey, and to complete the fencing project we want to install a gate in the front driveway. A few guidelines for us as we designed this:
- as close to purewood as possible (zero metal fasteners)
- 14' wide opening and no lintel, to facilitate large vehicles like excavators and stuff
- protects the inside from deer predation, and contains chickens

There will be two leaves (AKA doors) at this front gate, and they'll be secured together when the gate is closed. The gate will open only one-way, so the counterweight shown in the diagram won't interfere with the height of the fence. Those of you who have seen the front gate of the Lab will understand our gate - counterweight mechanism here.

I'm hoping natural builders can have a look at the images below, and provide any feedback, pointers, obvious design flaws, questions, etc. in an effort to make this design better. At this point, only the vertical support post is installed. Please post your responses in this thread. Thanks!

Here's an image I sketched together to start the ball rolling and communicate with the rest of the Boot Team:



This is the gate design, with the junkpoles removed from the gate leaf/door. It's kinda "busy" otherwise.



Some details on the measurements of the different pieces of roundwood are included here (imperial measurements, sorry for you metric folks out there...!):



Some additional details on how the vertical leaf posts are secured to the main gate bar at the top. Being purewood as much as possible, we're hoping to use mortise and tenon, with an extra helping of drawbore securement in the form of hardwood dowels plunging through the two joined pieces of wood.



That's all for now. Please post in this thread any questions, guidance, feedback, and so on you may have. I can clarify the design should you have any questions.

Thanks...!!!