sideways-action

Hi ive got a fd rx7 that needs a full respray i have bought a full cwest bodykit front/rear and side skirts but the painter wont fit the bodykit as he said it takes to much time,wondered how hard this was to do as i was planning on having ago fitting it my self i have never done this before so dont no what to expect dont wanna start something i cant finish wondered if anybody had any good advice or websites that may help me dont no if i need to make any brackets and best way to fit and seal side skirts and if i need a special kind of primer so kit does not crack etc.
any advice would be a big help.
thanks
joe