Alcohol-induced liver failure– what's the prognosis?

Trigger warning– this post is pretty bleak. I would have put it in the discussion group for liver disease if that existed, but maybe putting it here is apt.
The subject is a fifty-six-year-old male who has been an alcoholic since he was nineteen or twenty. For most of this time he was a binge-on-weekends-function-on-weekdays alcoholic, but he started drinking almost every day about a year and a half ago, when he stopped working. Now, for as long as three or four years, the subject has complained of a generalized malaise, as well as having regular diarrhea and drowning in phlegm in the mornings– he says he gets sick with "the flu" quite often. However, this condition seems to have snowballed and new symptoms have emerged in just the last few weeks. They are as follows:
- fatigue: sleeping more, complaining about being tired all the time
- not thinking as clearly, forgetting things
- loss of appetite– at one point remarking that his meal looked delicious but tasted awful to him
- nosebleeds
- petechiae (flat red spots where blood spilled under the skin)
- his wife said that his urine looked like it had protein in it; granted, I didn't ask for details
Also, the "phlegm" thing started as him clearing his throat a lot in the morning but progressed over time to gagging and just recently to violent vomiting sounds. However, I've never seen anything actually come up, which is odd.
I suspect he has some sort of pain because I've heard him breathing heavily and sometimes grunting and swearing behind closed doors. However, he's pretty stoic (relatives who don't live with him still have no idea anything worse than "the flu" is wrong with him) and probably wouldn't admit this to me.
Based on my research, all these signs point to alcohol-induced liver failure. This will be deadly in the long term. There is no chance that he will quit drinking– in fact, there seems to be a feedback loop where the worse he feels, the more he drinks. He has been repeatedly told to see a doctor about this (from as far back as when he first started getting "the flu") and refuses. He's the kind of person who can't be made to do anything. Months ago one of these in-the-dark relatives asked him about his retirement plans, saying that he was probably going to find himself out of money by his eighties. His answer suggested to me that he knew he wasn't going to live long enough to have to worry about that.
My question– and it doesn't feel great to ask this online, but I really want to know– is how long has he got to live? The Internet says people who keep drinking and don't seek medical help can live anywhere from a few months to three years after liver failure. Where I'm concerned personally, there's a pretty big difference between three months and three years. So I was wondering if anyone could give me a more precise estimate based on his exact symptoms?