I think it can work. NX top has a sun rider feature right? Where as a factory frame doesn’t. So the Nx door surrounds have a pivot point for the sun rider feature. I think it also has a mount for a bar that goes across the door surrounds. So being that you have a factory frame you won’t use the mount for the bar or the pivot point on the door surrounds you have. You’ll just forget about them and mount your soft top.