Educate the remote veterinarian about how you intend to use the horse. Here is a personal story. I found a potential fox hunter. I asked my local vet for referral to one in Atlanta. I talked to the Atlanta PPE vet about my hunt, territory, terrain and footing, and lengths of our coyote runs. He went to do the PPE, watched the horse jog, did flexion tests, and called to say that he did not think the horse would hold up as a field hunter, and he saw no sense in proceeding any further with x-rays. Billed me for a farm call and brief exam only, which I appreciated.
The horse was eventually donated to a college with a riding program where he served quite well as an 8 jumps and done hunter ring horse. I actually learned of this part of his life later in a COTH article about the college. I hope you locate a vet as forthright and honest as this one. The Atlanta horse found a good place to be, and I later found a wonderful hunt horse who was with me for 22 years.