Found it strange that the seller has nuts and cams, but refers to them as "rocks". They're also brand new, so the seller must've bought a few hundred worth in gear on a whim, and then decided to never return them.
"one full set Black Diamond double-wire trigger rocks,"
is a very strange way to describe BD C4s .5-3. There's no way you could buy all this gear without learning the word "cam".
There are legit ways to end up in possession of a giant pile of gear you know nothing about, and trying to sell all of it at once makes sense given that this person definitely doesn't know how to use "trigger rocks." But yes, suspicious - thanks for posting.