If you are crunching a jack point, chances are you have some pretty severe rust issues in many other places.

Time to step back and realistically assess what it would take to make the car sound. Might be ahead to source a southern car, and use this one as a parts donor to upgrade the other two.

Don't throw good money after bad.

Rust is cancer, it's insidious, and never sleeps.

Jim

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14 E250 BlueTEC black. 45k miles
95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles