The clunks should be the easiest. Take it to a shop, even an alignment shop, that will take the trouble to check and see what part is actually making the noise. Any shop that just tries to sell you something that might be "it" should be avoided. You can test the shocks just by attempting to bounce the car by pushing down on the fenders.

Steering wander can be ball joints, inner or outer tie rod joints, or the u joints in the column.

Body roll is a characteristic of 240's. They are tall narrow cars. People here improve this by replacing the front and rear sway bars with the larger turbo model's from a pick-n-pull or the 1" bars from IPD.

Ride issues are more subjective and IMHO strongly affected by tire choice. There are many discussions here on ride vs. quality and price of struts and shocks. Again, IMHO, a low-pressure gas type is the best compromise for ride and handling.