Small Cargo Spaceship Part 1

I got the idea from one of the members "CookandrewB" over at Lead Adventure Forum to make a modular spaceship a Bridge Section, Cargo Section, Engine Section and a Midship Section that would allow for adding additional space left and right of the ship. By making four each of each section with add ons, then one can have a fair combination of ships to explore that are adrift or sitting in a spaceport.

I thought I would start with a smaller ship, so here is my progress so far.

 I have more work to do but it's a great start.

UPDATE.

This is the ship I was kind of shooting for;

I wanted some extra room for the Crew's Quarters and I wanted something that looked like a weapons turret so I came up with something that looks more like a Gun Tub from old naval ships.