I understand everyone concerns, they are perfectly valid.
As it happen my cat is a moggy, however I wasn't planning on shoving her out the door to find any old tom. My mother used to breed pedigree cats. She now has a ginger tom cat free of disease, vaccinated etc. and she expressed interest in breeding him with my cat, otherwise I'd never have thought of it.
It's far from a done deal but if (big if) I was to let her breed then a few good friends have said they would be interested. If someone I didn't know was interested I would have to insist on seeing their home and reenforcing the fact that a cat os a real commitment that they have to have a real think about. I was also planning an insisting that if they couldn't look after the cat for any reason that they bring it back, and I'd really have no problem with it if they did.
Also, I wouldn't be in this for the money, the kittens would be free to make nice people happy. When i was looking for kittens I found many people giving away kitten at 6 weeks or so, I think my main aim would be to give people I trust kittens that have spent an appropriate time with their mothers (was thinking 12 weeks) so that they were developed properly.
I just wanted sound, detailed, factual advice that I can have a good think about; most sites I've seen just give the bare minimum. At the end of the day I think the fact that I find it hard to imagine life without my cat now means that I will not be able to do this because of the risks to her life; but I would still like to have detailed, factual advice because I am interested in the topic generally.
The concerns of CPL were not because of the road we lived on but the whole area, I also tried the other rescue centres in my area. Therefore, my cat was not a rescue cat, but in reality since she came with terrible fleas and cat flu she kind of was!