Cheaper yes but only available if you purchase an engine from them. Which makes sense since it involves notching crank and gears.
Not sure about rest of the assembly but I've seen the splines. It doesn't look pretty lol
I don't think we are going to get to see the photos or anything related to this failure unfortunately. The octagon is where threads go to die lol. I saw Ghassans post on facebook about his new solution. Reminded me of the TPG solution that was tried a year or so ago. I ran across another post on another forum where an f82 owner claims his m4 s55 motor slipped with the vtt solution and the capture.