Take a look at the patch model progressing in this thread:
https://forum.simplymaya.com/showthre...threadid=14780
As for creating on big Nurb patch, um, not normally. More common would be use the Nurbs patches to create a single shell poly or subdiv model.
AIM: mhcannonDMC
"If you love your job, you'll never work another day in your life."