I called Cabelas a couple of weeks ago with a similar question.
Apparently, the Special Orders department can handle that. I inquired about the Elite line scopes and the person I spoke with said that I just needed the manufacturers item number and they could get the item orderd. Also, it didn't seem like it would be a problem to get anything from Vortex that is not a regular catolog item i.e. the 2.5-10x32 PST.
Give them a ring.