Just be aware that Not all Copper nickel lines are ASE certified for brake line use. You could end up causing someone to wreck their ride.
You have to notice Copper Nickel BRAKE tubing is not the same as Copper Nickel tubing.
You still have to pay attention to the wall thickness of the product. There are still some that are too thin walled to pass ASE that are still available online.
I won't take the chance of putting others on the road at risk because of a flare failure using Copper Nickel on a vehicle with ABS since Stainless pre bent is cheap enough to just replace.
