@Bugsier_060
You mean, if permission is needed to add topview to sideview drawing done by someone else? Well, I'd say that by now so many Artists of "Shipbucket early (and even not-so-early) days" are no longer active, making the permission simply impossible to obtain, then it's a formality "nice to try", but hardly seriously "demanded".
Another thing would be a matter of crediting. Had a topview been added to otherwise unchanged (or almost unchanged) sideview, then topview would IMHO be need to be credited separately. But if the sideview was deeply, substantialy and visibly changed (updated - modified shading, new parts, better colors, added details etc.) to a degree warranting adding the name of artist which did the update to the sideview, then I'd give a common credit line for whole set (which is what I actually did to some of the submarines I drew in relation to Polish Navy Submarines thread).
@BvonTeapot
Yes, I understand the issue of sources. I'll try to look if I have something that might be useful (but Italian Navy isn't really a major interest of mine).
In any case, topviews are not a rocket science, and You clearly exhibit talent potentialy sufficient to handle them.