Interesting. Filming lights usually have uniform light dispersion, not a progressive hot spot that's preferable in high beams, but the parabolic "thrower" reflector on the module you linked looks quite a bit more like a hot spot design. I wonder if the module and reflector fit in the minivan headlight housing and if it does, how it'll get a sufficient cooling airflow. Estimating from the photo, it's approximately 9x5" in size which may be a tight fit.I think they are pretty good at it since they are used for filming and light scatter is not a very good thing for Filming at night or aerial photography.
Good luck, I'm looking forward to seeing the finished installation.