
( in the nicest possible way) Can I ask?
Why do you want to breed him? How you know he is good enough to breed from ? Most well bred dogs have what your dog has but some will have been shown.
Looking at it constructively , the reason for using a particular dog is he is such an outstanding example of the breed and has something to give the breed that others don't.
The other thing is when they are used at stud more times than not their behaviour changes. A unshown dog generally doesn't have the demand a shown dog or worked dog does. If using a dog at stud it is true once they get the taste they want more. How do you get more and are they the most compatiable bitches.
Just food for thought as there is a lot to think about first.