The ab/kidney split rivets placement is listed in the CRL level 3 text
"Rivets on the left side of the ab plate: a total of three rivets, the heads should be approximately 5/16" (8mm) diameter and equally spaced out along the depth of the armor and about 10mm from the edge. They may be painted white, or not. Note:For the original used TK armor, this type of rivets where, bifurcated rivets or split rivet."
Three rivets shall be present on the left side of the kidney plate, the heads should be approximately 5/16"(8mm) diameter and equally spaced out along the depth of the armor and about 10mm from the edge. They may be painted white, or not. Note: For the original used TK armor, this type of rivets where, bifurcated rivets or split rivet."
The thigh ammo connection should be split or Cap rivet (not standard rivet)