well, first off. drain the oil. When you do it, siphon the oil through a paper towel as it dumps from the car. if there's metal shavings of any kind in the oil, start looking for a new engine or major engine work.
Edit: also look all over for rust. As far as the brake go. to do the restore right, the whole brake system should eb replaced, and you can sneak in some performance mods while you're at it. like steel braided hoses and such.
For suspension, anything with rubber should be replaced. Anything hydraulic should be replaced. So pretty much everything should be replaced to o a full and proper restore