Sorry to see another MY00 STi bite the dust, a real shame.

Unfortunately I think this will be a write off mate, I would grab your rims and any other pieces that are not listed on your insurance policy before the car is disposed of.

a 20K payout should get you a good replacement if you have patience and a good look around.

I know the feeling of driving around sick and very fatigued, and the old brain just does not work properly at the time.
The main thing is you can walk away from it a little wiser...

Best of luck.

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"You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye." - Raoul Duke