
You should not be contemplating breeding cross breeds deliberately, there are plenty needding loving homes in rescue centres up and down the country. There is rarely any justification for cross breeding other than in specific cases where the results are predicatable and for a particular purpose, not just to sell cuite pups. I have in mind here certain proven working dogs such as Guide dogs for the Blind and to some extent types of Terrier and Sight hounds.
Breeding carries serious responsibilities to the puppies produced and their new owners. It is hard enough to produce typical sound pups with the desired characterisitics abd health in a chosen breed let alone the uncertainties that would go with a cross where temperament, coat, health size etc would be impossible to predict.
Also any cosss is likely to cost you far more to rear than you could expect to ask for someone to pay.