Brake Line Help

[MRKUS66]

Good Afternoon everyone. I am slowly rebuilding a 66 C-10 and curently working on the brakes. I am keeping the 4 wheel Drum brakes for now but I want to add a brake booster and new master cylinder, a couple of the hard brake lines are broken and I was going to replace all the hard lines, but I have gotten conflicing information from a couple people. When I bought the booster I was going to get the new lines, I was told the lines I was going to get would not work with a booster, so I asked which lines I needed and he said he didnt know, just not the ones I was going to get.

So My question is what kind of hard brake lines do I need to get to replace them.