Pull as much weight off the car as possible. At a minimum pull the engine, trans, diff, and wheels/tires. If it was a brand new 240Z I wouldn't worry as much, but these cars are 40 years old so they are probably not as strong as they used to be.
And I found my Mitchell data set for the E36 is fucked. Haven't run it in a few months and now its all woogy running on the latest service pack for XP. I'm looking for a good backup but for now I've asked a friend to go measure his car.
Off the top of my head...
Front
1. Offset spring and shock axis to reduce friction/bind in the MacPhereson strut.
2. Minimal scrub (2.5mm with 205 width tires).
3. L shaped LCA decouples lateral rigidity from longitudinal compliance. Lateral loads go into the pivot ball joint wile longitudinal loads create a rotation around that ball joint from the rear bearing compliance. Reduces rolling resistance, reduces NVH, and still maintain good braking control and lateral stiffness.
Rear
1. Multi-link that decouples the longitudinal load path (trailing arm) from lateral load paths (two angled lateral links).
2. Shock and spring laod paths are also decoupled.
3. Positive compliance - Toe in under braking, toe in under lateral (compressive) loads.
4. Multiple adjustments.
5. No roll steer and good compliance.
6. Good braking pitch axis (anti-dive) with the front trailing arm mount below the wheel center line.'