Aero 2 II AMG 8.5 x 18 ET44 on R129 – matching screws

Hello all, would like to install the Aero II AMG (usually for W140) rims on the R129 SL 500, unfortunately neither I nor the Mercedes car dealership find the matching screws. Track plates are also on it, front 2×25, rear 2×30 Do you have a solution for or maybe even a part number? Thank you!