Where to give/sell powered wheelchair ramp in Seattle?

I have an 8′ x 36″ roll-a-ramp that came pre-installed in a ford transit connect I just bought. Struggling to figure out what to do with it and would prefer not to just landfill, but at this point I might. I tried Craigslist, buynothing, habitat for humanity won’t take it. Does anyone know what to do with this thing? Uninstall doesn’t look hard, just a socket set, and the ramp is aluminum so not super heavy.