No counter is provided yet to show how many are available. I have been told that if you type a ridiculous number into the order box (like 50 or 100) it will ask you to please adjust your order because there are only X number left.
Thanks! That worked -there were 43 left when I tried it if anyone is curious. Which is great news for people – there is a plethora of them so everyone who wants one can hopefully get one!