Kid, I apologise for having not emailed you back yet.
If this litter is the one I think it is, then Mum is not hip scored, although other tests have been done. Have the breeders said why this is? Also, they appear to be a hobby breeder and not especially deeply involved in the breed itself, which is sort of OK if they have done things properly, but it does mean they will not necessarily have the experience to offer you 'after sales' (I hate referring to homing puppies as 'sales'!) advice, should you need it.
I would be concerned about the breeder asking for a deposit prior to meeting you. She may be offering to refund it, but by accepting a deposit, she is entering into a contract with you which means she is agreeing to sell you the pup and that could mean you could insist on buying that pup even if she then isn't happy with you as owners. Not a great situation to be in from a breeders point of view.
As a breeder, the homes are of paramount importance. It is not the breeders job to sell puppies, but to find suitable homes for them, and it can be a minefield. I appreciate from the breeders point of view you get a lot of timewasters and that may be qhy she is inclined to take a deposit, but rather a timewaster than an unsuitable home. If she really thinks you can offer the right home, seh should be prepared to wait until she meets you before taking a deposit.
Also, I would be wary of any breeder who reserves specific puppies for people at such a young age. I am always prepared to reserve a specific gender, but not a specific puppy until I know what the personality of that individual puppy will be. Some puppies suit certain home situations better than others, and for that reason, although I do allow families/new owners to chose puppies, I guide them in their choice.
I personally think the first breeder you found, the breed club secretary, was much better. Does she have no puppy available now? Would you not consider a bitch puppy? Perhaps she has another litter planned and you can go on a waiting list?