Shimano aero lever for parts

[gilmo789]

Hi I have a pair of shimano aero levers that are little used and perfectly serviceable.
However I am missing the little cable stop barrel that sits inside the lever.
Has anyone a worn out lever that i could scavenge the part from?
They are the Bl-1051 type

I need the barrel the the brake cable goes through shown below

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A picture of the style of lever