My Dad had a manual wheelchair so i know how heavy they are. Really won't be worth your trouble after paying for shipping handling. Doubt that a potential buyer would want to put out the extra cost. Just a few suggestions: Advertise in local community newspaper Place an ad in either The Want-Ad or Bargain Hunter's Guide. (does not cost unless item is sold). Put up index cards in Supermarkets or other community bulletin board. Be sure to include an accurate description of the chair,your asking price contact phone #. If all else fails consider donating the chair. Gave my Dad's to a local Veterans Hospital.
I hope the other chairs were nice to it before it's sold up the river.
Your okorder or cheapcycle. to locate cheap-cycle go to main Yahoo page click groups and do a search for cheapcycle. You might also consider giving it away to a disability resources center near you or putting it on freecycle wich you find the same way you find cheapcycle.