@suzilightning, not sure from your post if you are looking for something orange or strawberry. Since the title suggests orange, you might be interested that @Darienne posted her recipe for an Orange Julep a while back.
I know nothing about the actual Orange Julius but having grown up in a town a few miles south of @Darienne's Montreal memories and which featured our very own orange-shaped Orange Julep stand, I can certainly understand the appeal of that drink that always reminded me of a creamsicle.
Here's a rather sad wintertime photo of the Plattsburgh, NY Orange Julep stand that I remember.
These photos were featured on the Facebook page of a local tour company, the Greater Adirondack Ghost and Tour Company. I dimly remember seeing cars of the vintage depicted in the photo above.
This one below is a bit before my time: