Call your agent, tell them you want the check made out to you only, not ford.
Its your right dude.
You just got an estimate from ford.
You can buy the parts yourself from anywhere and fix the car in your driveway, this is your right.
The only issue might be if there is a lein on the car, they are going to want to make sure that the car gets fixed, thats the only snag i can think of.