Alright so basically if you've noticed that if you install multiple custom races that try to be able to wear the same armor, someone is going to be left out in the dust. If you edit the ARMA records to let Dremoras wear Iron Armor, then you have another mod which adds their race to the same record the dremora record wouldn't be there. Whichever esp you have later on the load order will overwrite the other one. So what I'm proposing is a unification of custom races. I would distribute this as a master file, that way you can set it as the master in your mod and when you add NewAwesomeElf to the armor they would work with other new races and be a lot simpler to merge into the master.
If you have your race in a finished, playable form, and would be interested in such a project, leave a message
Other ideas and comments welcome as well.