Totally understandable, I’d still consider shopping around a bit more. It seems like you could find someone to do it for less than $12,000, but labor rates at shops have certainly gone up a lot.I'm not real happy about paying for it either. But replacing an engine is a little more than I can do. So, I am at the mercy of the mechanics.
Really sorry you’re having to go through this man. These things really suck.