Based on guesswork, I'd be worried about video card support. I imagine that a lot of what makes MacOS fast for video editing is how well the video card driver is integrated. You might end up spending $1200 to get a computer that doesn't work much better than what you have now.

It's not my objective to discourage you from the Hackintosh route, but if I were looking into it, it would be something I would be concerned about.