Camargo seems the logical choice. He's not a devlopment project, he's a replacement level journeyman. He looks like he might be in the McKinstry mode - he's not going to be a big help but maybe a guy who is competent enough at the game not to hurt you either. They picked him up for exactly this situation (disaster insurance at 3B) so it would seem dumb not to use him.
Lipcius is the other option - less good. He's at the 'do or die' point in his career. No power but he can walk a little, but the glove may not play in the majors, and particularly not at 3rd, which is where they need the help.