the same happened to me not too long back, a well bred dog of 16mth old i had lined my old bitch by accident, the old bitch had 4 pups with just one pup surviving , i gave the pup away and when i see the pup now of 7mth old i kick myself, its a little belter thats coming on very well with the long tails and is very game, im gutted i didnt keep it as ive just lost the young dog to ground recently with a cave in as he was just coming on good himself, if i was you pal and you have the room ide give it a chance, atb