Yes, the cockpit is not a big place, and for that reason I was planning on placing some characters in the back of the craft. I'm thinking felix and kiska should stay in the cockpit, I can put brex or miguel on the computer terminal in the back and sit the rest (larsen and either brex or miguel) at the table you can see in the screenshots.
As for default player position, it will be somewhere behind the helm and tactical duty stations, I just don't know how far back: in front or behind the transporter.
I'll need to experiment to come up with the best position.
Walkfx will be needed to fully enjoy the mod, especially the 'old' version with the transporter in the cockpit as it has even less room in the cockpit (due to the transporter).