Some good thoughts here. At first I was taken back when i learned he was blind but after thinking things through I settled down and now the idea is exciting. A lot of thoughts I've had have been echoed here. Clear communication, proper expectations and at least one dry run. Reviewing destinations, there were a number of ideas but lately have settled in on the 'bay' on the south branch of quetico where the lake reaches toward lakin and the unnamed lakes (around #530).
I enjoyed reading about the wheelchair accessible deer hunting. You're right about attitude - i'd take a good attitude over ability any day.   Limitations don't have to stop us and  full disclosure is probably a great idea for every trip, particularly as we get on in years.. I'm thinking of a story my brother told. one of the people in the group brought someone new. No one was aware the guy was prone to panic attacks until the wind kicked up and they were in the middle of a large body of water. a little foreknowledge would go a long way.