Keep looking, there is someone out there who will do the frame work for you.

It's a bit specialized, but a good frame guy will have you back in shape in no time. All that's bent, I would guess, is the rear frame extension, possibly only on the one side.

Don't attempt to do this yourself, the chance that you will get it right are pretty small.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!