When AAMI paid out for my written off m35, they paid the a value from some guide (not redbook). Ended up well for meas the guide had its value at $19,700.
From this figure they deducted the remaining rego and ctp value, they also advised pickles would take the wreckfor $820, what a joke. The guy i spoke to from AAMI, told me to sell it privately so they deducted that $820 from the remaining payout and i ended up with $18,316. Not bad when i was not insured myself, i was expecting to get bent over and then some.
Hopefully this brings you some hope.