[Gocart879]

hello, recently a brake line in my grandmothers car has got a hole in it where it was rubbing on the frame, they were told by a local repair shop its not worth it to repair, i was given this car, as she recently purchased a new one, the one with the brake line issues has 25000 origional miles on it as she only drove it to local places like church. now the bottom of the car has medium rust as expected, but i have no idea how brake lines are replaced, but i am very good at mechanics and am interested in repairing this myself. im wondering, do you think this is worth it money wise?
how much it will cost me for parts?
how long this will typically take as i plan on replacing fuel and brake lines all together since they are kinda placed together. i need anyones opinion. please any suggestions

thankyou...