Don't got much money for mods but i have gt ground effects lying around and iching to put them on, by next year the car will be painted and i wanna do as much body work as i can learn and save as much money as i can. but for now i want to know before i put on the ground effects, side skirts, fender exten., eventually cobra bumper, what would be the best approach for prepping the body? would i just sand down what the skirts would cover and throw some primer on and attach the skirts? or just throw on the skirts etc. and for a cobra bumper what kind of prepping for the lower fender that it covers? btw the car is an 89 lx hatch