Doesn't look like much joy for image software suggestions. 
Martin, I can't see from your images if you have the skinny brass, front motor mount bracket to the endbell installed.
Is it there, or missing?
I had a search through my Dynamic stash, and don't have that chassis nose piece with the solid axle mount cast in.
I've got a Dynaflex version, and the usual 2 piece tongue and screw on axle mount.
So I'll fudge that part and use the standard screwed assy.
I also don't have the brass body mount, so I'll have to make one of those. Your photo will make a good template.