Depends what you want to do with the car. Show car, they'd do the job. If you plan on doing any "spirited" driving, or track it, autocross it, then no...too low and too soft.
Springs are springs. You need to find out what the rates are and see if you can get decent shocks matched up to them. Mismatched springs and shocks is kind of like tires that are waaaaay too wide for wheels. They might go on but the performance is far from great