Motera: Congrats on the acquisition. Good to hear that you plan to drive it. I have 75,000+ (s)miles on mine. I ain't saving it for the next guy.
A couple things to check:
1. The power steering return hose has reached an age where it is spontaneously deteriorating. Not the pressure side, just the return side. See the parallel thread discussion about this. Check yours. Rich Roback has new hoses for sale.
2. The grease boots in the rear suspension joints and tie rods was made of poor material. Almost guarantee that yours have cracked and are leaking grease and letting water and dirt into the joints. New and better seals are available from member GT101.
3. Check and clean your battery connections and ground strap. That has helped fix random electrical problems other members have experienced.
Then, learn to drive the car! Respect the throttle while you are learning. And forever after. Instant 500lb-ft of torque sounds good on paper, and feels good when you are pointed straight in a safe direction, but it will break the rear end loose faster than you can react. You need to know what will happen and be ready for it, not an "oh shit!" reaction.
I differ with the conventional view that you should quickly replace the tires just because they are 7 yours old. A motorcycle magazine ran a test of the same model of tires on a track, with one set brand new, and the other 7 years old stored in a warehouse. They couldn't tell the difference. Pretty much everyone here agrees that the Bridgestone replacements are better than the Goodyear OEM tires. But that doesn't mean the Goodyears are bad tires. Far from it. So I'd drive what you have until you need to replace them. Then use the last bit of tread to go do donuts and burnouts in some parking lot before you replace them.
Ask lots of questions here. Chances are high that you're not the first one to ask that question or try that change. But before you ask, do a quick search of the archives to familiarize yourself with what's already been asked and answered.