Battleversion made toe arms which was a complete replacement for the stock parts. So no elongating/dremeling the hole would be needed. I don't see it on their website, so I'm not sure if it's still available. From other people's posts though, this part is not needed unless you run a true coilover in the rear.

This guy is selling the battleversion toe arms. Old post, but they look like they're still available.

https://my350z.com/forum/southern-california/231451-fs-battleversion-camber-and-toe-arms-nib.html
https://my350z.com/forum/showthread.php?t=231432