If you're on a budget and you have a source for junked bikes, may I recommend the DIY approach?
Atomic Zombie Recumbents, Trikes, Choppers, Scooters and Electric Bikes Homebuilt DIY Project Plans
I'm especially fond of the Loderunner Delta and the Tri-cruiser Tadpole designs-and DIY would give you plenty left over for a decent fairing and/or Hybrid approach via electric assist.
That Silent Speedster Scooter looks pretty neat too-but without the pedals you might need to register/license it depending on your state.