Re: male spraying
It seems to me, that a lot of breeders keep an outdoor, climate controlled, easy to clean/sanitize "cattery" to house their stud-cats with an attached "yard" so the cat has room to play and exercise at ground level and shelves/perches higher along the sides of the enclosure and perhaps a tree limb/trunk to scratch/climb. I also think the stud-cats *are* allowed inside for socialization and family-time purposes, but the cat is *very* well watched to prevent any spraying in the house.
The only problem I have with that particular set-up is that it limits the amount of time the stud cat gets to spend indoors with the family and weather can limit the amount of time the family spends outdoors in the enclosure with their stud cat.
Most breeders need to show their cats if they wish to be successful in their endeavor to breed cats that reach the "breed standard". Showing also helps to be certain they are breeding in the right direction and that their cats are growing into the conformationally correct cats the breed likes to promote as a whole. Showing your breeding stock is a way of *proving* your bloodlines and allows an impartial judge to evaluate your cats without any bias. Accomplishments in the show ring can translate to the determination of kitten-worth from your litters.
Please pardon us here at CatForum. Many of us rescue and volunteer to foster, tame and socialize cats who have suffered due to the rampant cat overpopulation problem and we are leery of peeps who say they wish to 'breed'. We are a bit gun-shy and tend to ask pointed questions to learn of a person's intents. No one here will have a problem with you if you are a conscientious breeder, breeding registered stock and selling organization registered, healthy vet-checked and conformationally correct kittens/cats that meet the breed standard to clients. All others ... we suspect and do have strong feelings about contributing to the cat overpopulation problem ... though we try very hard to remain polite.