Fostex FE108E? http://www.madisound.com/catalog/index.php?manufacturers_id=131&sort=3a&page=1
It's only too big by 0.080", and if that bothers you, it would be easy to chuck by the magnet, & turn that off the diameter of front basket.
Even on a slight bevel with a radius to look nice, then black it again and it wouldn't even show.
It would be in the same family of sound as FE108ES II which I find to be great between 300 - 8000 Hz.
You might be able to hear them somewhere?
Robert Rerurn to Romy the Cat's Site