Automatic Transmission Torque Converter problems of the 2004 Dodge Durango

I went out one morning to due my daily running for the day and when I turned the key and the vehicle started it made a sound like the starter was stuck. I turned it off and called my husband and when I started it again there was a loud pecking in the motor. I took it to a local garage and the man listened to it and told me that the noise was coming from inside the motor and that he did not do motor work. So I found another garage and took it to them and they told me that it was the starter that was bad and that they wouldn't be able to get to it for a week or so. So I called the lot that the vehicle was bought from and he sent me to his garage and the man there told me that he would take a look at it and get back to me. Well he called the next day and told me that all of the noise was coming from the transmission and that it was the fly wheel so he replaced the fly wheel and the called me back and told me that the torque converter was what was making the noise. That the veins in it was bad and rattling around so I had to wait another three days for the part to come in. After he replaced that part and put it all back together and called me and told me that it was done and that it was still making that noise, and that he could not figure out where it was coming from. He started that he called the Dodge garage and talked to the about it and they told him that the crank was bad. And that there was nothing that they could do about it. So I asked them about rebuilding the motor and he laughed at me and told me that if I could find someone that would attempt to rebuild it that he would shake their hand that no one will attempt it. All I could do is have another motor put in it. We have had that 2004 Durango 5. 7 for only a year and we still owe the bank for the vehicle. And an engine is going to cost us 3400. 00 not to mention labor fee for putting it in.