My 540 had almost 300,000 km on the clock when I sold it. It still drove like new and pulled like a champ. It was replaced by a company car, otherwise I would have kept it. It broke a window reg and wore out some suspension parts. Otherwise, just regular maintenance.
5 years later, I got another e39 ...m5. So either I'm a fool, or these cars are solid.... Ok, I'm prolly a fool anyway...
I'm glad you went for it! Enjoy! Where else can you get 310 ft lb, 290 hp and 6 gears for 3k?