The ideal solution is to find someone that wants to do the opposite trip. They can take their canoe up to your exit lake on your car. Leave the car and paddle back to Ely or Moose Lake. Many years ago a friend asked me to shuttle them to Nym. I found a permit and a couple of days off of work and paddled up to Nym to drive their car back to Moose Lake. Worked smooth as silk except for trying to get the customs guy to understand it on the return drive.