Start with more research.
Does it require a lathe, Mill, or a X&Y&Z CNC to shape it?
Do you plan to buy a CNC or build your own?
Do you make the oboe from one solid block of material?
Get some numbers for " absolute accurate" cutting.
You will need a software profile or g-codes to use a CNC machine. This may mean a CAD/CAM software for the design.