has anyone got cavalier king charles spaniel stud dogs in the warrington or liverpool area

You should be looking for the best possible mate for your bitch...not just one whos close!.Your bitch and the stud should both have completed all neccessary breed tests(not just the ok from your vet) with satisfactory results.You should then research your bitches lines to assess any heriditary faults within them and should be seeking a male who is strong in the areas which you bitch lacks in.
Your bitch should be a good example of her breed which unless you are very experienced in the breed you will need to find a breed expert to assess before you consider taking a litter from her.Improving on the breed is the ONLY good reason to breed....a nice temperament,wanting a pup from her,she needs to have a litter,educating the kids or breeding for financial gain or any of many other 'reasons' for breeding a litter is not enough.
Archer

Both dog & bitch should have current(within a year of the birth of the puppies)heart & eye certificate, preferably hip scored for HD & checked for slipping patellas, or course they should both be MRI scanned clear for Syringohydromyelia & both be over 2 1/2 years of age-this is the veterinary advice from the Cavalier specialist vets

Breeding from Cavaliers that have not had these health tests done is irresponsible & could lead you into court if the puppies have any of the above genetic problems

If your bitch is in season you have left it way too late