Just coming back to the boards after being off for a long time and saw your post. I want you to know that I will be keeping you in my prayers daily.
My dad was 51 when he passed away from ALS in 1999. He did last about 15 months after being diagnosed but he progressed very quickly. Thankfully, my parents only lived 5 min away because mom had to continue to work and I would help with feeding, etc. while she was away during the day. We would have to go over in the night to help pick him up when he started falling. My brother is in the Air Force so of course couldn't be around as much.
I have to say that I learned so much from my dad during that time though. He never ask those questions, why me, etc. It changed our life because you really do realize how precious each day is and how you need to live it to it's fulliest.
I am sorry that you are having problems with his father...I know we all show our anger, frustration, etc. differently but hopefully he will realize soon that he needs to control it so he can have peace when all is over. Will be looking for updates about your wedding and praying that you can get a least a few days in at AKL since that is one thing that he wants to do.
Sounds like the tube, chair, and all is helping him do a few more things that he wasn't able to do before.
Again, will be praying hard for you all and everyone else that has posted that they are dealing with this horrible disease as well.