From what you've said, it might be tough to fix it up and sell for a profit, as the W140 models are not "hot" on the resale market these days.

But if you are adventurous it might be worth it to take a chance if you can buy it for a rock bottom price, and you are confident you can get it on the road for a minimum expense for repairs.

They give a marvelous ride and comfort and are sooo safe, but pricey to maintain and run. This one may be worse if it's real dirty, and had lots of deferred maintenance

It is much more complex than the W123 cars, which are real sturdy, simple and classic Mercedes cars

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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...

1995 E 420, 170k "The Red Plum" (sold)

2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp

1967 Mercury Cougar, 49k

2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold)