Question about painting

[cgster]

Im in the process of moving. My truck currently doesn't have the front or back windshield in so I would like to get both windows put in since my truck will be moved and may be exposed to the weather for a while. The truck isn't at the point where I can spray it, still needs body work..etc, and I also don't have the air compressor/spray gun setup that I will need.

I have the paint (3 different colors for the roof, interior and body). I can get the pinch weld areas around the windows cleaned up and ready for paint.

My question is, would a foam brush give me a decent finish around the pinch welds and a little beyond the pinch weld area?