You can paint a car at home with acrylic enamel and it can come out very well if you take the time to prep the car (sanding, cleaning) mask properly, and practice spraying patterns on surfaces so you don't tend to get runs (you can sand out and buff out runs if necessary tho').
Here's a picture of a hood I just painted in my one-car garage. I used acrylic enamel with a clear coat finish. You can read up on how to cut down on dust (I cleaned the garage out first, then put a filter on the incoming air window with a fan blowing out the other window). A model A can be painted in sections making the job easier to handle. You can do the whole job for just a few hundred dollars, including the paint gun. The picture below is of my '41 project, I just painted the hood last week in that garage. I used a Chinese touch-up paint gun - cost about $60. $200 will cover the cost of paint, thinner, hardener and misc. for a single-color model A.
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