aZn_RoMeO..... I have 6 years experience with 4 years as an apprentice and 2 as a tradsman.
I would have to aggree totally with GTST. Preparation is VERY important and can be VERY difficult to get right. The guy you get to put the paint on may do a really good job but if the car has not been preped just as good than it is a waste of time and it would decrease the value of your skyline. Save your money and get a pro to do it and if you are really keen to have a go than buy an old cheap car and have a go.
As for the extra primer and paint changing the lines of the car, this wont happen if the car is blocked down properly. Most of the primer you put on is blocked of again before colour is applied.
Doglet..... yes all the door shuts, boot jam ect. "were edged out"meaning coloured in the same blue. The only thing i didnt edge out was the engine bay but i did do the front guard edges, the top of the radiator support pannel and under the bonnet.
I hope to have a better finished picture of my car soon so i will post it up.
Tim.