My G7200 is also missing this, I'm waiting on my new micrometer arriving (and free time, a rare commodity these days) to take some measurements before I create a model.
But I'll have to, ideally, get (as above) lots of photos from all angles to maker it accurate.
Of course, if someone beats me to making one all the better

If, and when, the stars finally align and I make a model, I'll be sure to pop back on here with it.