Mr. Bauble... I DO like that! How well does 1/43 translate on this model?
I did do this:
AND, I planned on doing it to that rear deck, but I noticed that there ARE some fins/vanes on that deck on the model already. I swear I didn't notice any on that forward section and I call myself looking, because like you said, that's an important detail. Is to me. After I noticed them on the rear deck, I thought I would try and get away without doing those, but of course, y'all caught me. It's been worrying me anyway seeing how much better they look when they're worked on, so I'll probably end up fixing those too. It's a long drawn out affair!
The circular element is 10 mm. It may not be the right size for your model. The seller has a lot of stuff at different scales, so it is worth looking through his stuff. I like how photoetch can add depth to models. It takes patience, but I think you have plenty of it!