You only need a few tools for this job.
I changed the AOS on my 98 with zero Pirsche repair experience. I did plenty... plenty... plenty of reading... watched some vids... and decided to tackle it from under the car (remove passenger rear wheel) and above the engine. I would say the job is a 3 out of 10. What most you will need is patience. That's it.
You tackle that job... see how easy it is to save $500-$1000 and you'll wonder why you even considered the shop. You've got everything you need: The AOS anbd that clamp.
However... if you've the updated AOS you're going to need the updated hose/tube that crosses the top of the engine... the one running from the AOS to the TB.
When you go to remove the old AOS (We know you're going to tackle this job) just cut off the litle hose at the botom of the AOS (The one you're going to be replacing... the one for whic you'll use the new clip with the blue thing). I've read about guys that spend a crazy amount of time trying to remove the clamp of that bottom hose and when they're done... they just throw away the hose. So...
If you're going to throw away that tired old hose... just cut it off.
Bet you could tackle the entire job is a couple hours... maybe including jacking up the car... removing wheel.
The next time I have to replace my AOS it will take me an hour, maybe an hour fifteen, and that includes jacking up the car. Me? I'm not paying $500 to $1000 for that.
First read... watch vids... then ask questions! You can do this.
