engine replacement

Ok so i bought a 2001 Towncar from facebook and it was fine. After 1 hour of driving every light on the dash cut on exect oil light and battery light . There was vacuum code narrowed it down to the maf and repaired it. Then a few days later the alternator went out and i replaced that but after...

At 99900 lost all coolant but could not find leak. Coolant showed up in oil. Dealership says engine is gone and will be 8-9K to replace. Ford will only give 1k and the dealership will put up 1k. It's bad enough that they want me to pay 6-6k for a brand new engine but they will only give me a 2...