So sorry to hear. Hope that medical treatment can help. The bathroom in the Aspect is so small I think it would be difficult to make it work if handicap is too severe. There are solutions. We met a woman whose husband was handicapped. They had a class c with a nice large rear bathroom. They pulled a trailer with his electric wheel chair. They loved to travel and traveled a lot.
Don't give up, I know this is a difficult time. May not be able to use the passenger seat but could use a wheel chair tie down like in our public transportation. I hope it will work out in the end. Thoughts and prayers are with you.