I'm in the same boat as you dshade. I have to sit in a chair to fish can't walk more that 100' without a break. To get reduced fee license you must be:
Blind or visually impaired
Developmentally disabled
Physically disable and permanently confined to a wheelchair
Resident qualified veteran with a 30%or more service-connected disable
You may be able to get a Designated Harvester Card but that doesn't reduce the license fee.

The General