As far as I know, you are correct about the naval variant not being on Scharnhorst. The only reason I have modeled it is because the destroyer Z39 had them mounted. I put it in because I wanted to show all the variants I knew of. Because I have a limited knowledge of ships, I don't claim to know all things, especially Kriegsmarine. But I do know the subjects I work on pretty well.
So I only have those three. I will take your word for the funnel platform mount, I really cannot find a single good image of it. Like the turbine water intakes and the secondary boat cranes, that platform mount is on my list of things I would like to find out more about, along with all the fittings up around the platform. It is not an oft photographed area. I will make sure and put those images of the other type to good use. I hope to have time in the future to detail all these out a lot so I can use them as a real reference for a book or something. But that is a little way off.
). Classic Warship's Scharnhorst book is complete and available now, and when you get your copy, check out page 42 and then 49. He was also able to put one new camo picture on the last page, one I hadn't seen before. I think he mentioned he got it from a mutual acquaintance of ours, so you might have seen it before. I look forward to the debate that will inevitably cause. 
