I would like advice on how to attach a KG Works style spoiler to my NA Miata. I had a professionally-installed original KG Works spoiler on for 5 years but eventually the 3M tape and rivnuts failed and the spoiler was ripped off the car somewhere on a 2 hour drive. I no longer trust the 3M tape. I bought this replica but want to attach it with actual hardware on both sides (rear vertical surface and upper horizontal surface). I'd really like it not to fall off this time. The rear surface is already prepped for hardware. The upper surface is not. Here is a Google image search for you to get as many angles looking at the wing as possible. I would like the hardware to be as flush as possible on that upper horizontal surface and zinc coated because I would like yellow/gold color for aesthetic purposes. What are my options of hardware type and install methods?