also just one more question, i’m not really sure where the P/S leak is from so should i just replace power steering rack since it is close to the headers
NO! the rack would be the least suspect. Usually it is the pressure line, but do not count out the return. You need to do a very good clean up of your bay. Concentrate on a positively ID'n theses leaks. Those lines aren't cheap. An O ring, not so much. After cleaning top off the fluids and just look to see what you can see. Then start it for a minute and look some more! Running down leaks can suck real bad.
You kinda let it go a bit, now is the time to fix it. You would be money and time ahead to clean and run the car and the leaks down than to spend time and money ripping everything apart. I'm trying to point you in the right direction but with out being there I can only stab at it. Every coolant line in the rear of your engine is suspect. I noticed the "greenish" stain runs the width but seems centered above the exhaust? The power steering is a toss up there are O rings at the ends of the pressure fittings but if you haven't messed with them it's probably not that. Keep in mind I'm guessing your car has 170.000 + on it?