So, any suggestions on how to paint the frame?
I'm thinking of two ways.
Either get a good paint and use a regular brush to get it on, or get spray cans and apply it that way.
I'm looking for a thick, matte paint. I do NOT want a smooth, glossy surface.
(Desired colours: dark grey or olive drab, for a military look...)

The frame is alu, and I'd prefer to leave the existing paint on.
Any suggestions for paint to use for this?
(And by that I mean types of paint, not specific brands, as I'm not where you are... )