BMW 850i E31

BMW 850ia. I've owned this car for about ten years, but it sat in storage for the last two years. I replaced the batteries, and it started up without any hesitation.The car runs great; everything is working, windows, sunroof, seats, even the a/c is working. The body is in good condition, but the paint needs a good buffing. There's a small crack in the back window but its barely noticeable due to the tint. The car doesn't leak or smoke, but it will need to be towed! Unfortunately, the brake calipers are frozen, due to sitting. I drove the car with the e brake, and it runs good, but if I hit the brake pedal, it freezes up. If I let it sit overnight, the brakes will unlock. Therefore I know it needs brake calipers, probably on all four wheels. There are no signs of rust, and the front seats are very dry, and the driver's seat back is cracked. Also, the inside cover for the sunroof is off, and I can't locate it, just the rectangular inner cover, and the headliner is fine. This is a 28-year-old car, and I welcome your inspection.