Okay assessment completed and it's not written off, but the assessor basically said you can get it fixed or take a cheque for the repairs and keep the car. Unfortunately the second option is too much to ignore, so just waiting on him to process the paperwork.
Kind of a sad end really, as after 10 years of ownership the plan was, next year to transition it to being more of a track car. We had just re-done the steering rack, gearbox, clutch and put in the Koni adjustable shocks in preparation.
So the plan is to drive it for a bit longer and then work out whether we sell it as is or for parts.