For Hydro and painting, only difference is what's involved in the application between the prep and the laquer . Costs increase according to how many and how good the panels are and how intricate the design is. One solid colour for instance could start from 250, then sliding scale into 4 figures. when different colours merge into an adjacent panels then the base colour will be applied then subsequent fitment to the bike is necessary to make sure that additional colours lines, line up . E.G. nose cone to side fairing, side fairing to bellypan, side fairing to tail, tail to tank and so on....
I'd like a pound for every 'can you just' statements lol !
Google RS paints and that will give you an idea of material cost.....