Just back from the garage - all fixable.
As Shayne says, subject to a price.
I would be interested on an insurer's opinion on this, in principle, such as Chris Knot or some of the other's that use this forum as a sales medium.
My view, in theory, if that price is above the market value of the truck (undamaged) then the insurers should give you the market value of the truck. That should be the truck in its standard form, less extras that belong to you.
If you then choose to repair it yourself, then you can buy back the salvage from the insurers.
Up to the moment they pay out, the vehicle belongs to you. Once they pay out it belongs to them.
If you're correct "
here it would be worth 8-10k" then I see no way that the repairs will get close to that, so "write-off" should not be a question.
Like anyone else, the insurers will want value for money, they don't want to be ripped off by a $$ happy repair shop.
What I'll never understand is the inefficiency of the insurers to process the business. Again as Shayne said, the garage will be clocking up storage fees. These are often cancelled if the repair is carried out at that garage, but not necessarily.
IMO (for what it's worth) you should keep close contact with the insurers, the contract is between you and them. Phone them every day, maybe twice a day. They have no business delaying this process and you are the one inconvenienced all the time the vehicle is unserviceable.
You should be part of the negotiation process between the garage and the insurers. You should also discuss with the garage a negotiated price should the insurers write it off and you have the truck repaired yourself.
I wouldn't sit back and wait for them to sort it out, because it will take forever and it will certainly not be to your financial advantage.
JMHO of course, Steve, good luck.