help opening class/ weapon prof/ arms+armor access

Hey, I'm wondering if anyone knows of mods that do this, or could teach me how to do it myself:

1) All races can be all classes and multi-classes
2) All classes can get max proficiency in all weapons and styles
3) All classes can use all arms and armor

I believe there's a mod for #1, but I'm not sure what. While looking for help, I found that #2 might be doable by editing WEAPPROF.2DA AND PROFSMAX.2DA. I still have to test it. I'm not sure how to do #3.

Opening all these things up would make things SO much easier for me, as I have a wealth of house rules I use. I could also change characters on the fly without having to do a full re-install every time I change my mind. Any help is appreciated.