Not sure if you're looking for all out rosters, etc... or just the uniforms and basics, but many of them already exist. I was able to get the entire Tri-9 conference from past creations that were pretty close. I'd like to create my own with more time, but I grew impatient. I did do uniforms for Middle Creek however. Oh, and EA censored the Fuq combination of laters, so you can't technically make Fuquay Varina, but some are done as Varina and other slight variations. You can edit it in Road to Glory Mode once you load them there though.
Gamertag is blackmetalninja for XBox 360, you're welcome to check it out.