Hi Ron:
Aren't there any local vets around that you could get to know and build a relationship with? The health certificate is basically a formality. Everytime I've ever gotten one the vet simply looked at the bird, asked me if it was eating and acting normal. They checked the appropriate boxes, signed it and off I went. I think there was a $20 fee. But I haven't needed to get one in years. I hope you find a cooperative vet.
All my best.