E30 320 - Any Advice?

[Negative Creep]

I've been offered one as a straight swap for my MR2. It's a 4 door saloon in dark green and cream leather with an apparently genuine 76000 miles. Although I should really be getting something economical it's a car I've always fancied owning and I love the sound of a straight 6. Seller has said it's rust free but is there anything specific I should be looking for? Thanks

[fixedwheelnut]

Register and look around here http://www.e30zone.net/
Usual things, ball joints, rear trailing arm and axle beam bushes.
Rust spots are lower edge of windscreen, and sills near the wheelarches and jacking points.