[skidlids]

Mustn't forget one of the main requirements to a good handling bike is the Sprung to Unsprung weight ratio, especially when only having limited suspension mods.
After all the Sprung weight is what the suspension is forcing against and is used to damp out the suspension forces.
Heavy wheels with heavy tyres and built up momentum contain alot of force that when deflected by a bump trys to lift the weight above them, so if the wheels, discs. sprockets etc (unsprung Mass) are on the heavy side and the frame, tank, bodywork etc (Sprung Mass) are to light the bike may accelerate fast, stop quickly and change direction quickly but that doesn't mean it will handle well.
So if funds are limited you have to decide what direction to go in and spend it wisely.
Things that save weight and help handling should be top of the list, such as the weights of the discs (or disc), wheels, swingarm, mudguard, rear sprocket, etc
Take a Close look at Ghostys bike and you can see he not only had a light tank but also reduced the weight of several unsprung components .

Most of the weight saving on my 998R is to do with the unsprung components, Mag wheels, Narrow track discs, Mag swing arm, carbon front fender, Titanium bolts where sensible to do so, AP rear race caliper, Alloy rear sprocket. These components not only reduce overall weight and gyroscopic weight but they also reduce the forces that the suspension has to deal with so lighter springs can be used which in turn makes it easier to control with the damping