About 4 weeks ago, I purchased one with76,000 miles on it. The dealer added new rear brakes and rotors, valve header gaskets, rear tie rod ends and state inspection. Everything works properly except for the spoiler switch which is no working all the time. Top is in very good condition and it look like the front bumper was repainted at some time .Clean car fax. Due to its age, what replacement parts should I be trying to secure before they are no longer available.

Thank you, can't wait till spring