My best recommendation is to think this through long and hard before you decide to go about letting your man do his business with cats that you don't know alot about.
First off, a breeding male is more likely to spray. That increases the chance that your home will quickly become the biggest litterbox known to man. Not to mention the calling that you may encourage with breeding. This is the #1 reason adult cats are altered...because the owners finally get tired of the calling 24 hours a day and the spraying inside their home.
Secondly, there are diseases that are transmissable that you cannot be certain, even with decent testing, aren't being given to your cat. As a basic rule, Hunter AND the females need to be tested each time he's bred for feline aids and feline leukemia. As a responsible breeder, I'd expect that you've already had him (and you expect the owners of the females) to have already had their females scanned negative for hypertrophic cardiomyopathy. Testing is the ONLY way to be certain that no one in the lines (Hunter and the females he'll breed to) has this heart condition which can be passed on genetically to the kittens.
I would also advise highly of researching FIP and being aware of the risk present. Even a health cat, outwardly, can be a carrier. You also risk transmission of intestinal parasites and protozoan if the females (and Hunter) haven't routinely been screened for such things.
Moreover, what shows and awards have the females and Hunter been to and won? In this day and age, as well as this economy, every breeder should be producing only TOP cats. Not breeding simply because they have a furless being in their midst with reproductive capability. The breed standard faulters when we decide to breed two animals simply because they look alike. Take a look at how badly many dog breeds are going down the tubes because people get two dogs that are a certain breed and let them have puppies.
In addition, remember, there's a reason that most breeders have a closed cattery. Take into mind why they might do this before putting Hunter's health at risk so that he can produce a few babies.