Welcome to the forum. I've found it to be an amazing group with lifetimes of knowledge and caring.
I'm in a similar condition as your husband but less critical state. I have had Hep C for at least 30 years and am now at a point where I cannot work due to tiredness and mind-fog (ammonia). I have acites (abdominal fluids), varices (enlarged GI veins), enlarged spleen and low platelet count.
Based on my history and experience to date, I don't understand why your husband wouldn't be able to have a liver transplant. In my case, my Dr. cannot successfully treat me for the Hep C until I have a transplant. My low platelet count would be cut in half by the Interferon, causing a dangerous bleeding situation. While my new liver will become infected by the Hep C, this previously non-infected liver is easier to cure.
Perhaps I don't understand the impact of a high viral load but you may want to read the Pittsburg newspaper's (Tribune Review) March 2008 series on liver transplants. Setting aside the treatment aspects for a moment, there was an obvious difference of opinions as to when and who got transplants based on the goals of the individual transplant centers. For them, it is both a health and business decision.
Some centers made decisions based on staying inside the success rates expected by United Network for Organ Sharing, or UNOS, which sets organ allocation rules under contract with the federal government. Many centers will refuse to do complex transplants due to increased failure and complication rates, which might make their success rate look bad and disqualify them from certain insurance company 'approved lists'. You can see these success rates on the UNOS site.
At long last, my point is that you may want to get a second opinion from a doctor at a different transplant center. In my investigations, it is obvious that I can manipulate when my transplant occurs by the selection of particular transplant centers and doctors.
I hope that this is helpful, although I know that I am tossing you a handful. I hope that your husband doesn't give up - and that whatever occurs is successful. I'm sorry that you have to deal with so much. Hang in there.
Be well, John
If I weren't having so much fun with you guys,
I'd love to be out sailing on Long Island Sound
Woodmont on the Sound, Connecticut