all the things you have replaced are comman items to go on commodores ive had a few commys heres a list of the to of my head things ive had to replace turns out most of it is to do with interior/trim rather than mechanically enjoy...
1988 vn series I 5spd exec
owned it for a year and a half i replaced the alternator, idler belt, thermostat and clutch
then just basic servicing
had a brown interior nothing was broken i did an interior conversion switched to full berlina everything was changed over so it looked as if it was a berlina
1999 vt series II exec
x2 remote heads $150 ish
x2 map pockets appx $45 each
x1 seat backing appx $250
x1 seat rail plastic cover appx $20
internal dash globes both instrument cluster and controlls $5 a globe = near $100 to replace the globes i needed to replace
drivers speaker grill appx $45
automatic shifter sourround $20 new off ebay (old one had 3 screw holes from hands free kit)
after replacing all this it brought the car up to new showroom condition mechanically i didnt have to change anything apart from a $10 purge hose and the idler belt n the basics spark plugs leads filters etc had the car for 12 months very reliable but beeing a vt it was sluggish so i sold it to get a vs as i had a vs at the time that had a lot more go
1996 vs v6 exec
x2 oxygen sensors
ECU
exhaust manifold bolt
fuel pressure regulator
rocker cover gaskets
idler bearings
x2 remote heads
roof lining sagging $180
a/c button/dimister switch $20 each
dash fascia broke whilst replacing switches $99
ashtray $20 ebay (old one cracked)
automatic selector $10 ebay (old one scratched)
recently sold that to buy an 01 vx acclaim about a month ago
1995 vs series I ute
x2 remote heads
all idler bearings
rocker cover gaskets
a/c switch
tail lights
didnt really keep it long enough to have much else needing replacement other than basic servicing sold it in october last year to buy the statesman
1998 vs series II 5.0L statesman
x1 remote head + key cut (spare was missing)
ignition module
ignition coil
radious rod bushes
front ball joints
alternator bushes
heater tap
vaccume solenoid under the dash
drivers side velour window pillar (old one had a hole in it from hands free kit)
ash tray
3 wheel centre caps
and yep still got the car and absolutly love it
and last but not least
2001 vx acclaim
x2 remote heads
x3 plastic seat rail covers
unlock button for rear centre arm rest
all the globes in the dash
front dash storage compartment
stereo/mid centre console sourround type thing havent replaced it yet its on order its gona be horrible to change as it seems to be a very decent chunk of the dash it has 4 holes in it on the side from a hands free kit dam what is it with me buying cars that have holes in the trim from hands free !! so yeah to replace that panel its all one peice