While I don't agree with your desire to try to use E4E as a prot talent, I do like the idea of trying out a 2H Pally Tank. I was messing around on CharDev.org and came up with this gear/spec.
http://chardev.org/?template=145926
Tanking with Seal of Command while using DS and CS on CD. Its dumb, but it could be fun.
Def-capped and over 28k Unbuffed HP.