Would you not welcome lovers of the breed who are not yet owners? I am not sure the kennel club stipulates that all members of a club MUST be current owners (although, I don't know this for a fact, so please correct me if I am wrong). The registry of dogs must only contain pure bred CsV's (FCI registered or not, as this is what your ultimate goal is). I agree on the non inclusion (clumsy, but seemed nicer than exclusion

) of current 'breeders' who breed mixes though - they will have to get their own settlement with the KC first, independent of the pure CsV club, or it will make a mockery of what you are trying to do. Your hardest bit is going to be trying to find the pure dogs without the help of these 'breeders', but I am not sure if your initial list needs to be exhaustive (once recognition is achieved, dogs can be added retrospectively - again, someone correct me if I am wrong).
By including people who hope to become owners in the future (near or distant), you are ensuring your club can continue to grow. You will be bringing in lots of varied experiences and opinions which can all be added to the 'melting pot'. You will also be able to address the breeding pool issue easier if prospective owners are planning to import from various kennels.
As for suspect dogs because of the CW issue - I don't think you can exclude them entirely at this point since they are still FCI recognised. It may be at some point in the future that some will have to be removed from the recognition, but that will be happening on a world-wide scale, so the KC cannot blame you for including them now.
Well done for getting the ball rolling and lots of luck