To do:
Change arm to a convory arm. (remove to increase performance)
Replace 2 small ships with O2 refitted version.
Add oxygen system.
Adjust ship to fix air leaks.
change doors to airlock style doors (increase performance)
Refit Living areas for vents in each room.
Find and add docking space for drones (possible port side drop style bay)
Change 5 personal doors to double door's airlocks with vents.
Add computer room.
Add program from workshop to display LCD (credit person)
Program Airlocks with vents and not to allow double door?

Look at version with no rotors or pistons (so it can be included in large universe).
Look at large dry dock for ideas to incorporate.