Just be thorough on ebay. I sell a ton of stuff on ebay and am very thorough with my listings(usually copy all specs from manufacturers website) And I sell bike products, used, for people I know. Anything from used saddles to high end road and mtb bikes.(will even sell smaller items if wanted).

So don't discount ebay b/c of one bad story, it is on the buyers part to make sure they did their research on the seller also!