You can do just about anything with these bikes up until you got to the "not much effort" part.
Any kind of tail or front fairing swap is going to take some serious fabrication. For whatever reason there is almost NO aftermarket support for the ZX9B. About the best thing you can do that is easy would be to shop ebay for an undertail and (if you're lucky enough to find one) a rear hugger. Any farther than that and you better be able to TIG weld.
