I'd say male. The line between the book lungs is more straight as oppose to being a curved "U" shape. But the spreading of the book lungs is more similar to female. So you've got a toughie. I'd wait for a molt to be 100%
I am practicing my vent sexing but lack skills. I am just starting the art of identification by ventral. I would say possible female. I wish T’s could molt on demand, but this is fun too. The anticipation and excitement when you have raised a sling and discover it was a spider lottery that you just won with a female.