Should paint my truck myself or ...?

[1968GMC]

Did not ge to much responce from body and paint so I will try here. My truck does not need any bodywork per say, just surfice rust here & there.I got quotes at diff bodyshops and go from 4000-6000$. that is kind of high for me altho il spend the $ if I had to.I've been toying with the idea of painting the truck myself to save $. I painted a firewall on my freins chevelle, it was the 3rd firewall i've done and it was the best job yet. I figure, anything that I cant do myself I would pay someone to do it , (welding for example). Also will a better quality spray gun be more user freindly and produce a better paint job. What kind of paint should I use? Acrylic or BC/CC. Witch of those 2 is easier to tuch up with (runs for example). What grit sand paper should I start with? In general, do you sand down a vehicle, prime it completely and resand, then paint?I am going from dark red (bergundy) to yellow& white, is there an other product that has to be used going from dark to light? I want to strip down the truck completely to repaint the firewall & interior witch is why the bodyshope are charging so much. I realise that light colours hides imperfection better then dark colours witch is another reason why i want to paint my self. But theres a probleme whith all this, THE WIFE. she will complain that i dont spend enugh time with her or something witch I dont blame her. Wat to do. help me decide.