Great idea! I've been toying with the idea of releasing my custom files as a mod, but that means I'd have to work on them to make them consistent and write a bunch of explanations. It would be much easier to send my ideas to the mod consortium, like 'We should add some boarding DEFENSE ability to boarding parties. Security stations aren't the only way to defend a ship. Boarding parties are MARINES, right? So they ought to defend as well as attack.'
Also, you ought to make coordinated parts of this "standard mod" so people can use parts that they like. What if I want the best planet selection/colony build queue for the AI, but want to keep my own components? Make sure that the parts that are not inherently dependent (designcreation and components for example cannot be seperated, or AI research and techareas) are not linked unecessarily so you can use them seperately.