If you intend on crashing more than once then go for the bars,
much much better protection offered compared to just bungs.
Bungs only offer decent protection up to 20mph, anything over this and the pivot point they create puts too Much force onto the long bolts that hold them on, these bolts then tend to bend under the pressure, this in turn can strip threads in the engine or frame depending on where they're mounted and ultimately can cause just as costly damage to repair as damaging the fairings/ engine covers,
This is said from numerous experiences.
The other advantage with crash bars is that you too can get that 'urban courier' look and cable tie a 'for sale' sign to it as a fairing, who needs fancy plastic expensive fairing lowers when you can just pinch a local sign!?