Hood pin & cable kits ..questions

I'm gathering parts for my '70 340 Swinger 'clone' but I'm not too sure I can make myself drill the necessary holes in the hood for the pin kit.

Part of the problem is that I'm concerned that the cable will scuff or scratch the paint from flopping around in the wind. Is that not a problem?

Also, are the entire pin kits stainless? Or? I have had terrible results with aftermarket chrome. It doesn't last anywhere near OEM.

And how difficult is it to get the holes drilled in the correct spot?

Thanks