this is what they changed and charged:
77251-53060 tube, fuel main - $57.85
23902-31012 tube sub-assy, fuel - $145.90
Labor - $410.80

Total charge with taxes - $641.99

it's fixed...no more gas smell

 

Here are pics of what they replaced. Looks like a major fuel line that routes from the tank, under the car, to the motor :

 

brooooooo im on the same boat.
Lexus did my valve cover gasket and less than a week later I smell gas from my AC took it back to Lexus even tho i knew where the leak is coming from and should be a easy fix butttt nooo I wanted them to handle it since it happen on there hands and drove straight there. the guy told me 1K job but sine it happen on a bad situation and knows I'm upset. he drop the price to 500 said that's the best he can do, the tech also showed me what he is going to replace and how. i wanted top take my car back and try to do it my self but i would be chancing a fire in my car. i was stuck in a pickle

 

i dont see the pictures