Estimate for repair costs?

[speedyspaghetti]

Hey guys,

I posted on here a while ago about some vibrations/judders I was feeling through my steering wheel that a few shops had been unable to diagnose. I took the car (2002 Boxster S with 85k miles) to a highly recommended Porsche specialist here in the Bay Area and he did a thorough - and I mean painstakingly thorough - inspection of everything the car needs. He scared me a bit with his list - I don't think he's suggesting I do all of it, but he said he could find $15k (!!!!) worth of stuff to do.

Here are the main things he mentioned needed doing - just hoping you guys could share some insight on fair-ish costs, just to make sure he doesn't try to screw me. His labor charge is $200 an hour, so I might not do everything at his place, but I'll probably have him do a couple of things. He said he'll call me tomorrow with some numbers.

1. He thinks vibration is caused by inner/outer tie rods and possibly strut mounts.
2. Rear passenger strut is leaking, suggests replacing all 4
3. Rear trailing arms need replacement according to him
4. Clutch and/or shift cables need to be replaced - this is the one that has me a little miffed. I did notice that the clutch was starting to get a little hard to push in, but it does not slip at all. Shifting into 2nd has been a little jerky recently, but I figured that it might be something to do with not having had the clutch fluid changed and I have no service records from the previous owner indicating that the fluid was changed. I probably won't have him do this one since he didn't say it's an immediate necessity, but I also don't want to risk damaging the transmission itself.

He mentioned other things like coil packs, spark plugs, and window regulators, brake pads and rotors, but I'm pretty confident that I can do those things myself.

Thank you guys for any insight you can shed on any of the above items.