Don't ask friends to help you paint. Basically, you are asking them to give up their day off to save you money. You don't want to be first on the list when your painting buddy hits you up to help him move do you?
By far, the most important characteristic in determining whether you are Warm or Cool is your hair color. If you can't determine your exact eye or skin tone, then your hair color will provide the answer. Why? It frames your face!
Take off the chrome molding around both the windshield and rear window. You can pick up a special tool at your local Mustang shop or by mail order that removes these quickly without scratching paint. Of course your paint is probably not in great shape at the moment, so a large flat screw driver will also do the trick. For some classic cars it makes sense to even remove the windshield, but classic Mustangs have chrome molding that will help cover any slight overspray.
Hair colors come in categories of : Temporary, demi permanent, semi permanent, permanent. Each color line has recommendations on the categories and of uses of their particular types of hair colors. Each line has color enhancers, color glosses and so on. I recommend you have your stylist or colorist educate you on the types she or he will be using on your hair and why. This will help you when choosing shampoos and conditions that will help maintain your hair color between coloring services.
Are the contours rough or concealed?
Step four: the key to a finished looking painting is to build it just like a house...and by that I mean layers. Paint it in the reverse order in which the eye sees it to make it three-dimensional. By this I mean paint what's farthest from the eye first, and build layer upon layer towards the eye. In other words, do the background first because it should be the farthest from the eye, then add the objects on top of that, and then add the shadows to complete the look. Ultimately it's common sense. If you paint a bowl of fruit, the bowl and fruit need to sit on top of that background, much as it would in real life.
You're not looking for perfection here, but you do want to eliminate every shiny spot of paint. When properly scuffed the paint should have a smooth, but dull matte finish.