I guess I might be a fanboi but the buell blast is a great little bike. Just put an aftermarket exhaust, rejet the carb, maybe change the airbox to something smaller, and you have a light, short, easy to handle bike. You said your wife is a clutz, well the blast has plastic body parts not fiberglass so you get to drop it a few times before you break something. Replacement parts are/were pretty cheap. The blast has a belt drive so no chain oiling, it also uses hydrualic tappets so you don't have to do valve adjustments. The only thing I don't like about my blast is it is pretty low as the exhaust is below the bike, and you can only go around 100miles on a tank of gas.
The brakes on the blast are excellent, just be sure your wife understands that 70% of the braking is in the front so don't be afraid to use it.