Everyone learns about safety some day.
My day was when i was driving my baja beetle over a speedbump and the engine cut out.
So i crawled under it to check if the fuelline had come off, while wigling that thing, the fuelline just pulled off the metal tube that went alongside the shroud. so there i was fuel pouring all over my chest and arms, trying to stick that thing back on. Then when i crawled form under it i noticed the reason for the engine cutting out was the wire going to the coil had been knocked loose.
So i had the ignition on, chest covered in fuel and a loose wire dangling next to a metal cooling shroud........
That day i swore to allways think about safety when doing work on cars and especialy when it comes to fuel etc.
The thing with your lines is they are corroded probably, and it's not just that one part that's corroded the rest of the line will have suffered too.
Take the safe route and replace the hanger, and the rubber seals. While you are at it, check the filler neck too, another great toyota design to trap wet mud and winter salt.