Well, I've seen suede Lavin licensed SC get sold for a decent price maybe the camel hair will get some attention? Well, crap is a subjective term. But the the licensed Lavin stuff are fused to shits, low end fabric, and shotty workmenship. The real stuff has this woman hold hands with a girl that kinda looks like a sail boat, if that makes sense. Well, I only have a few real Lavin ties and a few real Lavin shirts that says "Lavin" and nothing else, think "Dior". I've yet to see a good Lavin SC. I'm sure DM7 and a few LA guys on here have seen it or handled it.
I've found a non-licensed Lanvin suit in the wild. Honestly, it was just a nice suit with a slim cut. Lanvin tailored clothes used to be made by Canali and are now made by Caruso, so look for the same things you would in any suit: soft fabric, canvassing, pick stitching, etc. If it's stiff as a board and with lapels at your nipples, it doesn't matter where it was made.
Or if you really don't trust your hand on suits, open the jacket up and look to see if the content tag is from Canali or Caruso.