Weren't there some issues with the external camera going really far away when the centre of rotating subobjects is really far away? 
Yes.
Isn't that how the Varjadasfhwufhlakfnd deploys its main railgun? Meh, I guess I'll cross that bridge when I come to it.
About the stealth bomber, I think you could possibly extend the upper part of the neck upwards to make a hump that goes the entire distance of the ship, allows for a slightly different cockpit design too (one that doesn't betray the scale of a 70 meter long bomber and one that wouldn't be functionally disastrous (all cockpits would be, realistically, but I guess there are degrees of disastrous
)
So I discovered that if I nudged the nose down just a tad bit, the cockpit would get a whole lot more viewing space. So I did that. The bomber's going to remain the size it's at however, since it works, in-universe. But this means a fs-scale one could get made pretty easily without changing the exterior.
Started work on a cockpit.

Basically, I'm thinking

Oh, and an idea of what the final paintjob would look like:
