If you can get the bimmer running, put some rims on it and you can sell it for more than you think.
So far as electrical problems are concerned, more often than not it has nothing to do with the wiring but has to do instead with the car's computer. That is easy to replace, and you can find them in pull it yards all over the place.
As far as working on them, I have owned several 7 series BMWs. From the oil filter, to jacking them up to change the tires, they are amazingly simple to work on. It's the parts that are expensive, and this because all the parts are still made in Germany. If you bought a Mercedes it would be different because many of the parts are made in Canada, Mexico and China, but not BMWs. This is also why they are such amazing cars, they are the only car totally designed and made in Germany.
Just my two cents, I have owned many cars, many Mustangs, until I owned my first BMW. I refused to buy anything but American for years, but after my first experience with a BMW, I have wanted, and driven, nothing else. And all of those I have purchased used, and for better than reasonable prices. You don't have to be rich, or a yuppie to buy, upkeep and enjoy one of the finest cars made in the world.
Scott
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