Your inspector should either be already approved to split the case, or may need to get a one off permission from Engineering.
Get the Continental overhaul manual, it lays out the details of what is needed. Parts can be obtained from places in the front of Trade a Plane such as El Reno or Gibsons or ECI.
You can choose proprietory cylinders or aftermarket cylinders.
I would also check out what Mattituck can supply in New York, they have an excellent tech department and Mahlon Russell is a mine of information and thouroughly nice chap to boot.