Indeed… There is one here :

http://www.ebay.fr/itm/Portable-Apple-PowerBop/141679996842?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D30071%26meid%3D93425a6d0cf5430fa05192c89c0e63c8%26pid%3D100011%26rk%3D1%26rkt%3D3%26sd%3D141620808467

But it's the one without the CT2 module. if you have a source for the module, swap should be easy.