what type of sandpaper should use to take off the paint? and is the sparycan primer any good? its like 3 bucks each at wal mart, and how many coats of primer/paint should i put ?

 

don't need to take off paint, wetsand it w/ 400 just enough to get a white haze on the clear throughout the whole car, make sure it's free of dust and particles and do not contaminate the car with oils, if you do wipe it down w/ some type of cleaner, as for primer don't know how many cans buddy, just spray.. make sure you do light coats..