K frame refinishing and rebuild advice

Im going to sandblast my k frame for the cuda, then primer and "paint" it. Im trying to save as much dough as possible and do what I can instead of handing it all over to the resto shop. Any ideas as for the "paint"?? I dont have a paint gun or the dough to get one, what are the options out there for paint, should I brush on or rattle can? The under side of the car is being painted black, I am not going body color, so I am looking for something black.

Thanks
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