I have two TE2 helmets and I have plenty of room in both with fans and my mic, I can wear my glasses in there if I wanted to as well. I have a decent size head so I think you would be ok with a TE2, you can always trim a little more around the helmet opening if its an issue. RT-Mod helmets are nice, but not as screen accuarte as a TE2, AP, or TM.