You might be lucky to do it in 4-5 hrs, if you are really lucky.

Looking nice is really the point, and since you are trying to match the door and fender, it really wouldn't be worth it to go through the expense of trying to do it yourself.

You could probably get a Maaco quality job yourself w/several attempts. I painted my last truck I rebuilt myself, and it took 4 attempts to get it presentable enough to sell. I tried spray paint/sand and finish, burnt thru the paint, tried to match it w/off the shelF(didn't want to order more), paint didn't match, then tried the roll on(search will reveal the who roll on paint process), sand/finish, didn't look right, sanded/primer painted w/gun, burnt paint in finish, repainted, didn't burn paint in finsihing, sold truck. Cost of paint/hardners/thinners alone was about $250. Learned alot, but I guess not enough to not try it again. <img src="/forums/images/graemlins/lol.gif" alt="" />

The adult tech class would be worth it if you are thinking of doing it again, you might contact the class to see if they would paint the door and fender for you, for learning experience, you cover the cost of paint/supplies.