Actually People have been known to mount small Headlights, Tail lights and a License Plate right on the Race plastics and drive them on the street.
Or you could purchace Street plastics off Ebay or somewhere and it would be street worthy.
There will be No issues with getting plates and Tabs it just depends on what route you take to get the Lights back on there.
All wiring should still be on the Bike.
Mike