3 Chiweenie/Schnauzer puppies

I have 4 months old chiweenie/schnauzer mix that are ready for new home. There are 3 pups available. Two of them look mostly dachshund, one blue and tan, one black and tan, one fuzzy black female. The other two are males. I fed them a relatively cheap dog food brand that had grain in it, and these puppies formed a food allergy and started scratching their fur. I took them to a vet and he told me to put them on food for a grain-free dog, so I did and their fur is slowly growing back in. So that's why they look kind of funny. I've got them on pure grain balance free puppy food. They're free flea, wormed. Asking for 250 dollars