Man, too man words, not sure I even made it half way through.
In any case, this is why you buy carbon frame from a bike shop and not second hand. I said for years how i didnt think carbon mtb's made sense and now I have one...
The china carbon stuff is simply a crap shoot, it is similar to buying cheap blank skateboard deck, it could be the best board you ever rode and it could be the worst, but there is no way to tell that at the point of sale. Once difference is that a cheap deck is less likely to break your face like a broken handlebar or rim will.