the parts alone for the tune up will be somewhere around 200 bucks for plugs, wires, air filter, fuel filter and pcv valve if applicable and 85 for the front springs. so for those two jobs alone you are looking at 285-low 300s in just parts. Labor for the tune up probably 2 hours or so and like blue bowtie said about 4 hours for the front springs. So you are looking at 6 hours alone in labor for those 2 jobs. Estimate 80 an hour times 6 hours is 480 in labor plus 300 in parts so somewhere around 800 bucks just for those 2 jobs. When is the last tuneup this vehicle had? Plugs and wires will usually last a solid 100,000 miles so if you just pull one of the plugs out and look at it or take it to someone that has done tune ups before they will let you know if it should be changed.