Should have bought a Tracer in the first place! Can’t see much point in buying a Naked then covering it in ugly plastic. Buy a heated jacket and gloves, that would make a difference.
I did fit Givi hand guards to mine for the winter - made a noticeable difference. I also have the MRA 'touring' screen which keeps wind presure off my upper body, but does cause some turbulence around my head.
Handguards, heated grips, small windshield and a good jacket make a huge difference. Better in fact than my V Star Deluxe with the batwing fairing and talk windshield.