you can buy line and make your own for less. take out the old line, then make the new one to match the old. to do it right you'll need a double flair tool. your mechanic friend should have a clue about this.
originally that was the plan . for what ever reason ,i'll have to ask again he told me already but i wasn't really paying attention , he said he couldn't do it. maybe he doesn't have the double flare tool. is break line and fuel line the same ?