. I was guessing at the launch date. I'll make it 2305.
Here's a nice shot of a fliming model:
That seems to show the impulse engines on the center line but forward from where I had them, and the antimatter storage goes a little more aft than the warp core in special compartments that allow quick emergency ejection at the drop of a sombrero. And there seems to be a single warp core, part of which acts as a spare.
Here's the latest update of the image, with probably more left to change.