Well, the upright in the foreground is an upright, definitely not a recumbent at all, and not a RANS Rocket. The VIVO was the suspended version of the Rocket. The cue is the main tube that extends so far back. If you look hard, you'll see the rear shock tucked up tight to the main tube, and the fact that the rear rack has to attach to the -- seat stays?? -- instead of the main tube.
Considering the 1-D-10-T posted a pic of him on a steer as the main pic, he's probably not seeing any responses and you may be able to talk him down substantially. It is, after all, about 20 years old. Tell him old Rockets generally go for $300-600 and offer him somewhere in that range depending on its condition. Otherwise, the other Rocket listed is a recent model and would be a nice ride.