If you can't test things, just sell them "as-is". And say "I don't have the time to test all these items, so I'm selling them as-is".
I've had stuff I've saved from being tossed in the garbage for years and years and I keep lugging them around waiting for people to buy them because I don't like Amiga stuff just being thrown away. Don't throw things away just because people on here gave you a hard time. :-( I think most things people on here have offered for free or for just shipping have been snapped up pretty quick. If I was near you, I'd drive over and pick up everything you have, but I'm not even in the same country. There's gotta be someone in Montreal that likes Amiga's. Do a craigslist post.