If you insist that only FTCH X FTCH will do then its going to hurt the wallet somewhat.
The costs of buying your dog/bitch, training it up, competing, doing the health tests, registering your kennel name with the KC, paying to get your bitch covered, registering the pups with the KC, the vet care of the bitch and worming vaccinating, microchipping, docking &etc all add to the costs you need to recover in the price of the pup.
There are good, sound, non reg, working dogs out there for reasonable money but unless you see the parents in action you've no guarantee they'll be any use and the parents are unlikely to be health tested (but then a lot of the top Springers don't seem to be either