I'm not a expert outside of Jordans...
It might sound trite, but why not head down to Glue or Hype DC or whatever.. see what's on the shelf?
With the Vs, there are two colourways which you'll find as fakes:
The first of these was recently retroed, the second last year, so there are more real ones out there than bootlegs. General rule of thumb: If the price is too good to be true, be VERY suspicious.
You could always post the link here if you're concerned about an Auction.
BTW here's a link to a complete inventory of Jordan V colourways.