It could be like a, model creator.

One in wich you can choose, console color, texture (wooden, stone, etc...) and button styles, or even rotor styles,console size and maybe you could do a modeler community, in wich people can upload button style models, or textures, or console styles, and you could even do a contest, in wich, like, the winner has the oportunity to put his models in the mod, like in an official way, and... maybe you could do the same with Sonics-.

I think it would be actually harder to program it that to do models, cause people could do them xD

(Forgive my english, I'm spanish) 

You could personalize it and get blueprints, and depending on the model, it would need more or less materials to build.

And you could choose wich side does one function, like, this side, does the demat lever function, or the monitor function, or the flight GUI function.

Pretty complex

It can be long term but just think about it, that could bring a lotta variety to the interiors xD

John is working on a new MDL system so you can make your own models in another program and replace current ones in the Dalek Mod via a resource pack.

Ooooh can't wait.

In addition to the above, SWD Team has a content creator planned.

Dalek Mod Workshop

Cool then, but a content creator like I said, or model creator like techne? (Wich isn't avaliable anymore)

The dalek mod workshop is a content creator, not a model creator, it allows you to add / change certain aspects in the game

Well, it will be a content creator when/if it's finished.