I bought a Rans Enduro Sport frameset and that's pretty much what it was. I had to provide wheels, drivetrain, brakes and handgrips. Most of the parts came off of existing bikes but, even at that, I'm not sure of how much (if any) money I saved after buying tires rims and spokes, and a different handlebar, riser and fold down gizmo - all at full list price.

I never saw the frameset listed in any catalogue or advertisement - I just asked. Can't hurt. Dealers like Angletech offer their own component spec packages for recumbents from many manufacturers. I'm sure they are simply buying framesets and bolting on components they select themselves.