Thank you all, and for the edit explanation (done). I was able to add a few details to the interior but in order to make it swooshable there is quite a lot of bracing. This is the best pic I have. On the engine taper, I may experiment but really want to avoid gaps and blocky sections. Rest of the pics are here https://www.flickr.com/gp/125208796@N02/Et8PhH
IMG_20200405_100909 by Brendan Filby, on Flickr