A celebret from the local Ordinary (of the Conciliar sect) would make his ordination even more doubtful!!
I thought of that, but that is why posts always have to balloon to a huge size, to cover all the bases.
Yes, it goes without saying that we don't have that option, with the current Crisis in the Church. But it doesn't change the fact that
under normal times the Church would take care of all that "hard stuff" for us, so we laymen could just live our lives, show up at Mass, and not have to worry about validity, jurisdiction, priestly training, etc.