I normally wait till my chins are about about 15 months old to start breeding them. This way i know they are old enough and the female's body is fully developed and generally malocclusion would have shown up by now (not in all cases... it can show up later in life). Nine months to a year is the normal recommended age to breed a female, but keep in mind some mutations grow slower, like black velvet, violet, ect which is why i wait. All our chins get dental x rays at about 15 months to check and see if there is any sign or start of malocclusion. This is not cheap, but even with a good pedigree a chin can develop malo. A health check by a vet before putting a chin in to breeding is a must too.
I find because of the age i start breeding at the females are harder to bond with the male, and this process can take longer, so i may not get a pair caged for another month or 2, if at all.
Before breeding your male and finding a mate look at his back ground, like was he from a pet store or did he come from a breeder. Depending on his color (standard vs mutation) you won't want to mix him with just anyone, as to many generation of mutation to mutation breeding will result in lower quality kits. The fur will be poor, they will be smaller, and a whole lot of other issues... If he is from a pet store or has no back ground, and you still want to breed call some local breeders and buy a good pair to breed. A good pair of standards won't cost you to much, or if you want to get into mutation breeding you can get pairs that will result in mutations, that way there won't be any surprises.
We have a pet only chin from a rescue. He is the coolest guy ever but we don't know anything about him, other then he is healthy and we won't breed him for that reason, even though he is a looker. He hangs out with the dads when their ladies are raising new kits to keep them company so its not like he is lonely, and its nice to have a chin that is a pet.
Good luck