Don't know if it will fit.
To cut the shell you can do it in 2 ways.
Lexan scissors / Curved Lexan scissors is one way.
Personally for all the ones I do I score around them with a scalpel and then just fold it back on the score line and it snaps off. If you're not so handy with a knife though the scissors are probably your best bet !
http://www.youtube.com/watch?v=rH0JH1zrZDM
Can't get youtube link to work directly despite numerous attempts, if a mod wants to correct it that would be ace so the video is imbedded in my post.