I have owned Inga for two years now so I thought I should detail some of the work I have had done in that time.
Front sway bar (23mm from a 960)
Rear sway bar (19mm from a 940)
All suspension bushes (mostly with SuperPro ones)
See here: ozvolvo.org/discussion/756/suspension-upgrade-for-inga-my-740gle#latest
Cam belts (full kit with idlers, tensioner, etc)
Front Springs & shocks with bump stops and dust covers (King springs & Monroe GT shocks)
Exhaust system (from the cat converter back)
Brake master cylinder
Rear tail light assemblies
Rear engine oil seal
Seat belt buttons
Oil cap washer
H4 headlight bulbs
H3 Fog light bulbs
H1 driving light bulbs
Lockable fuel cap
Brake pedal rubber
Fuel guage sender (twice)
Lambswool seat covers
Dynamat insulation - did this when looking for the source of water leaks into the car.
Floor mats (still need a better set)
A left foot rest - had a local fabricator make one for me
Drivers seat (Repacked cushions)
Blocked flame trap
Brake light wiring
Front disk brakes
LH Rear wheel bearing
RH Rear power window
Also had the car interior detailed when I first bought it and, after the oil leaks were fixed, had the underneath pressure cleaned.
A recent Compression test was 170,175,180,175psi.
She's been on the Dyno, see here:ozvolvo.org/discussion/1453/inga-on-the-dyno#latest