EIC from 2004NFC X Lean mac Should the Breeder Buy Back>?

I purchased a dog from a Lady in Peyton Co. about 1yr ago.. The dog being just a year old has what the Vet calls EIC....The dog in Question is sired 2004 NFC DRAKE by a Lean Mac and Rita reynolds Bitch....After asking " Mrs Breeder'' about this .She said she would replace with another lab in a Year or 2 by another FC sired stud to her bitch whom is running trails right now....Mrs bREEDER also wants the dog back to examine it...Why Cant I just for a spay and get 2 vets opinions instead of having to fly the dog back to Colorado and spending even more money...What would you guys do out there?
Why send the dog so she can make a diag.? When the 2 vets can tell the same thing.....There was nothing ever covered in the guarantee about EIC just like 99% of them out there......But you can bet money my next purchase will have that in Bold writing....
Dont get me wrong I am pleased she has offered to replace the pup but I am really gun shy about the Whole thing right now..
SO I am faced with spend another 300 to fly this dog back or Just call it a loss?