I am looking for a pair of 08-15 Spandau machine guns for a Fokker Dr1 project I’m building. I am looking for non firing replicas but they need to be sturdy as they will be on a flying plane. I also want them to be able to be converted to propane firing for noise and muzzle flash. I have seen these but haven’t found anyone’s willing to build a set or a person that offers such a thing. Any leads?