Plan B for fixing the egg-shape holes in the front spar root, plate and rib clips is to order some next size up rivets (5/16" dia. CCPQ-53), drill out the holes and install the bigger rivets. I hope I can clean up the holes with-out making it worse. In the mean time I continued drilling up the vertical frame and fabing the skin stiffeners, then disassembled everything and debured the holes and edges.