Dave, the rear suspension is easy to take out.
1) Remove rear seat
2) Remove parcel shelf
3) Jack up the rear of the car
4) Undo two nuts at top of strut tower
5) Undo large nut at bottom of shock
6) Slide the bottom of the shock off the mount
7) Carefully remove the whole strut unit
You can get spring compressors at any auto shop, they are quite cheap.
HOWEVER, after I removed all my suspenmsion, cleaned it, greased it yup with vaso - the noise came back.
Dave, let me know if you come up with a fix.
Also, is your noise only at low speed and very small bumps ??
Cheers,