I'm so sorry to hear this Dawn. End Stage Renal Disease is very frightening for everyone concerned. Not only are you dealing with the failure of hubby's kidneys but it seems everything in your life must change.
First off, you need to get in touch with the dietitian associated with the hospital where your hubby's nephrologist practices. They are full of exactly the information you need. You will not only get a detailed reduced/low protein renal diet, but a huge packet of recipes and ways to make substitutions in your favorite recipes as well. There may be other things that would be good for your husband to limit or eliminate in order to maximize his kidney function like phosphorous, sodium and other things. Again, the dietitian will become one of your best friends in this area.
The other thing is not to be afraid of a transplant until you have more information. The statistics you quoted include all kidney transplants - related donor, living donor, cadaver donor. One of the most common is a cadaver donor and those are not always a particularly good tissue match. Sometimes because of other health issues, an organ may be transplanted that isn't an optimal match because there is no other choice. Depending upon your husband's situation, other health issues, available organs, etc., his particular transplant may carry a much longer average "lifespan".
Also there are 2 basic types of dialysis, which are very different and are accomplished differently. Bilby and Kadesma have a lot of first hand knowledge about this. While it is lifesaving treatment, it can be very hard on the body long term. Again, much depends upon your hubby's other health issues. There are people who do very well on dialysis and actually choose not to seek transplant immediately. But others can really only survive dialysis for a limited time and need to be transplanted ASAP. So you will need to be open to whatever is the best course of treatment for your husband.
So learn all you can, ask lots of questions, and look to family and friends for emotional support through this. There are a lot of people here who care and are here to listen and help. Keep us up on this, Dawn.