Need help fixing my car.

Hey y'all.

So as most of you know, my 2018 has not gotten out to a good start.

On 1/1/2019, I was on my way to work at 6am when my car broke down on the side of the interstate. I was hoping for a much cheaper option of something like the fuel injecters, but it turned out to be I have a cracked engine block, which requires the entire engine to be replaced.

I took my car to Roger Dabs Chevolet in Brandon, where I took my car when it broke down in November. My warranty company has refused to pay anything and they want me to foot the bill for $6900. 

I did find a cheaper option, having it done at a Mom and Pop place (Cohran Transmission in Morton), but it's still going to cost about $1600 more than what I have. 

You guys know me, and know it hurts my pride to ask for help.   Especially in such a public forum. But I've exhausted all other options (I've applied for 3 different loans, begged my warranty company, and attempted to trade in my non-running car and refinance for a new one, but I still owe too much).

Any help would be greatly appreciated.

Love you guys. <3