Down to Road trek?

We too are struggling with the decision of going from a B+ to a B van. We love all the room and huge bathroom in our current unit + with having a Murphy bed, we have extra space during the day. The problem is we still enjoy the convenience of a tow car but the hooking/unhooking and added driving stress are becoming a concern. DH has Parkinsons so some chores are becoming more difficult. Our biggest concern with a further downsize (we used to have an A class)is bathroom and shower facilities. If we could find a B van with a reasonable bathroom, it would work for us. We could handle the small space for the convenience of less stressful driving. This getting older is NOT fun!