So I am looking for ideas on different parts you would used to put together spaceships in a spaceship crafting style game. What are the essential, not so essential and classical stuff you like to see in and outside of your ship (Given this is a sci-fi lite/space opera in the vain of Star Wars/Star Trek, so super realism isn't a requirement).

Generally I have my parts divided up into the following categories.

Structure: For creating the hull, internal rooms.

Systems: Reactors, Shields, Weapons, Sensors, etc. Complex bits of machinery that have some function.

Interfaces: Which I imagine to be things such as flight controls, engineering stations, etc ... basically parts that let you interact and control the above Systems.

Furnishings: Miscellaneous items of various function and decoration, generally they have no ship-based function but are more aesthetic and crew functional.

Infrastructure/Connectors?: And one I'm still debating to include and not sure what to include, stuff like power conduits, fuel lines, air vents? The alternative being this stuff is just intrinsic to the structure/systems and you don't have to worry about it.

Whats the stuff you generally have on the ship? At least System-wise is what I'm mainly trying to have covered, suggestions on the others is welcome too.

(Sorry if this is in the wrong forum and thanks in advance if you shift it to the right one)