Your original posting has a picture of a brake line kit so you must know where to buy those. The kits sell for a little over $100 for the entire car or around $40 just for the front of a '67. (NPD shows 7 different kits for the front of a '67. For a complete car set there seem to have been 10 different variations for '67.) No one that I know of goes to the trouble to sell the individual lines in those kits. If they did, the individual lines would have to cost about the same $40 since they would rarely ever sell one of them. If you want just one line then Driveway gave you the answer. Go to NAPA, or wherever, and they will have a selection of straight brake lines in various lengths. Buy what you need and bend it to fit.
Your car has already been that route since your first photo shows a brake line with a non-factory splice in it. They likely screwed up the end fitting and spliced in a new line section from NAPA. If you buy a long enough line you won't need a splice.
Using flare nut wrenches on brake lines will help avoid problems.
Flare Nut Wrenches