I picked the "clipper ship" description because the nacelles and ring reminded me of a big set of sails somehow... and because it'd be fast as well.
Here's the first try at detailing the ring and connection, some slight reproportioning... I also fixed the mesh issues - it wasn't a problem on the original but rather in the way Bryce was importing it. I opened them in C4D, exported them as .3ds files, and then Bryce handled them much more smoothly -- it was actually windows. Did the same for the nacelles as they were wonky too.