A few questions

What insurance company?
Do you presently have the title?
If so , you won't need another title
What are your coverages???
Deductable?
Milage counts both ways ---low miles good, lots miles bad
What can an comparable vehicle be bought for?
Sales tax---they owe you for that unless another vehicle is bought promply in which case it can be transferred
Do you have window sticker, etc which lists every option / extra on car? Many will only offer settlement bases on base vehicles---
Special paint or dealer applied options---undercoating, striping, tire/wheel combo, trailer tow options(heavy duty radiator,alternator,brakes)
Sound systems,phones
Extended warraNTIES