Looking Into Ideas To Install Mad Max Style Roof Spoiler For Ford Maverick

Okay so I know this might be a bit of a ringer to figure. But in working on my car, been trying to figure how to replicate the style of roof spoiler used on the famous Ford Interceptor. I didn't want to exactly make the Ford Maverick LIKE the Interceptor, but I did want to consider take some inspirations from it. Being it is after all a Wasteland type daily driving vehicle. I had tried to research, and rumor was it was a spoiler off a van? I'm not too sure about that. But I just needed some ideas to consider.