However, as far as the rigging pins, and alignment, I am very curious about the datum points and what the tolerance limits are.... This design was never built for such a heavy rotor, but I couldn't beat the price (I am working with what I can)....You feel I need a stop for forward sweep is critical?... I also noticed some flapping during the last test.... Not sure why.
Somehow, I don't think you have a sufficient grasp of the enormity - and the likely consequences - of what you are attempting.
I suggest that you think long and hard before you proceed any further.