I have a sandal style that you interested, It's Zindy style (see the picture i attached), but in my shop on Etsy have size 6, 5 and 10.
However if you want the sandal in size 8 and 9, I have available for made to order. It will take around 7-10 day complete. If you interested I will send link again for you purchase.
For size shoes, you can see the compare shoes size that I attached a picture for you.