Does anyone else own a ford ranger with a 3.0L flex fuel?

Or any mechanics that have worked on several? If so, I have a question for you. What are the automatic transmissions like in them? How does the engines hold up? What is the overall durability and quality? The reason I ask is because I bought 1 a month back and it has been a nightmare from hell. I'm doing a motor swap next week and I also have replaced alot of chassis parts. I need to know if I need to sell it or keep it. What is your experience with this ranger in particular? Below is a pic of it. Does anyone else own a ford ranger with a 3.0L flex fuel

We had 6 of them at work in the fleet. All leased. These trucks are driven and not loved very much. But they give very little problems until they get 175000 to 200000 miles. They get the oil changed regularly and filters etc and that's it.

Looks like yours has had a hard life to begin with so I would expect minor problems unless it has been abused.