I’m a big fan of rocket oriented decks for Starfleet ships.
On the matter of buzzard collectors there’s the idea that the warp reactors are in the nacelles in TOS. That makes a lot of sense given the Bussard collector location, because then they can feed fuel right into the warp core, and energy right to the warp engine. With the warp reactors outside the nacelles then the Bussard collected hydrogen is maybe fusing with warp plasma in the warp engines as they absorb energy, bypassing the warp core.
You could go with the idea of an in-hull warp core, and a more real life like Bussard collector, where it’s an opening at the front center of the craft surrounded by an array of magnetic rings. The warp engines don’t need collectors then, but could instead focus on radiation mitigation through position, shielding (water jackets and/or solid material), and distance since the original concept for keeping the nacelles from the hull was radiation issues.
I just realized the warp core could be the sublight engine and it just directs the thrust plasma to the warp engines for FTL.
well just some ideas