Take a day and read my experience doing doing this same job. I ended up cutting the original ports and milling in new ones. It's a job Clint at Rebel S needs to include in his website. Have a look towards the end.
Cleaning/Rebuilding 930 Calipers....
EDIT: Actually, this may get you to what you need a little quicker. John D, the founder of Rennlist asked me about them in OT one day so I started another thread there:
http://rennlist.com/forums/911-forum/964402-my-coilover-rear-shocks-and-my-930-brakes.html
I think you will find that your sideways bleeder nipple is going to hit on your oil lines or your frame if you don't cut off that bung.