Can some recommend some front brake line replacements? How much are stock lines? Stock 98' 4runner 4x4 220K miles

I just finish replacing my brakes (performance friction), rotors (blank brembos), and bleed system. Notice one of the front brake line had a bend and feel soft, and it would expand and contract depending on position of the brake pedal. Would that cause the brake pedal to be mushy?

Prior to the install, about a week ago the brake pedal would sink pretty low almost hitting the floor. So I though I needed a brake job or there?s air in the lines.

Is there a DIY for replacing brake lines?

Thanks in advance

 

http://www.wheelersoffroad.com/96024runnerblines.htm

 

check out www.4x4wire.com there is a write up on there how to do it and i got some goodridge g-stop stainless brake lines for like $140 and there prety good