RS2 bumper for 80ies convertible

Hello! I’m looking for an RS2 bumper for my 80’s convertible that can also be broken. Actually only needs the parts that are there for fixing the Porsche Nebler and Blinker. Because in my project this year I would like to install the Porsche Dinger in my bumper with normal Neblers and Blinkers! It would be best if it wasn’t a GFK bumper, because then I could weld it with my thermoplastic hand welding device! Or do you have other ideas or helpful tips? MfG Sebastian