Suggest you take it to your local Ford dealership. Go to the used car manager. Explain to him (or her) what you need, and how much your agreed value will be with the insurance company. Have them write up their appraisal under the dealership letterhead. I've done this several times, and they've always been happy to pretty well give the appraisal you want (need), and all at no charge. Good Luck!
Join the national SAAC club. As part of the membership they will appraise your car at no charge. Just send them good photos and they send back an appraisal. Well worth the $50.00 annual membership, IMHO.