Cost to replace brake lines? on 1996 Oldsmobile 88

The mechanic tells me both brake lines have rusted through and need to be replaced. What's a fair estimate for a job like that?

Asked by for the 1996 Oldsmobile 88
common area by rear wheel to rot out. we make or own lines and install. we get 2 hours labor plus the lines. we also flush the system as well. runs around 200-300 when complete.

WOW where you at? I was quoted $650 to replace all brake lines! Leaking fluid and cannot afford that expense.
outside philadelphia, pa,

Wish we had a shop like yours down here in Florida... :)