There are 2 answers to this:
a) I certainly hope that you can find the information that you're interested in, and that it helps you.
b) The people who can write most authoritively on "polyamory and people with disabilities" are people like yourself. I for one would be interested in reading your thinkings on the subject. Whether you have experience in polyamory or "just" curiosity. There are lots of people on here who express their doubts, misgivings, difficulties... We can all learn from each other. And you're more of an expert in (at least) one aspect than most of the people on here. So share your thoughts with us!