Brake line clamp and fasteners.

Hey guys I'm gathering parts to start putting my brakes back together I got new lines and the spring covering. I'm looking at clamps now that bolt them down to the firewall and down the frame. My first question is what size should I get to go around the spring wrap? And how many go against the firewall? What are the correct fasteners? And should they be put on before paint or after? I'm installing the brake lines after paint but I'm not sure if the fasteners are supposed to be painted? Pictures are greatly appreciated!!! I'm getting the 3/16 size for unwrapped part of the brake line. I'm not sure what size for the wrapped portion. Here are the two clamp styles I'm looking at.

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