I like the SS inline brakeline kits. They fit, You will never need to replace them or worry about them.
SS flares are harder to seat in the fittings, but tightening and loosening 3-4 times while watching where the wrench stops each time makes it very doable. You will know when you are done when the wrench won't go further than where the previous tightening sequence ended up.
Carl

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission