MK: I am so sorry to hear that things are not going well. Like everyone else, I wish that I could help but Mo is rather far from Tx.
Have you thought about calling the American Cancer Society and seeing if they have an electric hospital bed? I know that our local ACS has helped others w/ this. If not, see if your insurance might pay for one. This bed might help w/ his pain, being able to get in different positions. Also, what about one of those "slings" that will help lift him in and out of bed as well as the shower? Does he have a wheelchair? Also, I know that either Medicare or Medicaid will pay for someone to come into your home, so many hours a week, to help you clean or cook or do laundry, run errands, whatever you need.
I know that you are both mentally and physically exhausted and this is a lot to think about. Do you have anyone that could make these calls for you? I will be more than glad to do so if you want to share the info I would need.
Lots of prayers and love.