Restoring A Modern Car - Sorry Its A Long Question

[Quoi]

I was just thinking about the costs of bringing my ageing car back up to the standard it was when I bought it and i was wondering what it would cost compared to swapping it for a newer one.
My car is a 2006 vectra estate 1.8 sri petrol with satnav. The mileage is 98k and i have had it since it was 18 months old and had 17k miles.
I still like the car and I still really like the way it looks and it does everything I want ( i confess i am easy to please).
So what things would I need to consider? here's my wish list so far.
-Reconditioned engine with new clutch & engine bay cleaned
-4 new tyres
-new n/s rear door (i scraped it on a bus)
-new interior trim in the rear (i have abused the car over the years and damaged some plastic)
-full exterior valet - including claying the paint and polish
-full external valet underneath and wheel arches etc
-full interior valet - seats and carpets out - its very dusty inside
-new springs and dampers
-new suspension bushes and steering track rods
- air conditioning clutch & regas - air con doesnt work
-some paintwork touch ups - not many
-full service
If i buy the parts i need from ebay - i have a friendly mechanic for the engine.
am I a long way off if I thought I could do that for about £3000
I wouldnt get much of a car for that with mine as a trade in - what do you think ? have I forgotten something major?
I dont want it 'fixed' - I want my original car again.

[Buenchico]

You'd need to find out why the aircon doesn't work. If it just needs re-gassing then you're looking at, say, £60. However if it's a component failure you can multiply that by ten. (My mate has been quoted £600 to fix his air con).

[Quoi]

it was spotted on a service 5 years ago - it was definitely the air con clutch that had seized because i hadnt used it.
I would probably replace the whole thing with an ebay part - if it was 600 - it wouldnt bother me if it wasnt done tbh.

[Quoi]

I made the mistake of cleaning the car myself today and realised how jaded the whole thing was lol. I have been looking for a while for a different car that inspired me but I like what I have - if I could buy a newer one with VERY low mileage I probably would.

[tonyav]

If your gonna stick with Vauxhall the Insignia estate ain't a bad looking motor.

[bhg481]

I'd love to know how you've managed to wreck your engine in 98K miles - my Cavalier did 200K on the same engine and required very little oil between changes when I scrapped it due to no longer having a use for it and no-one wanting it even as a gift at 20 years old.

[shanehaumpton]

Check the electronics and engine oils. Check the internals of the car.