Using the OS Rosters (from July), I went 13-0 with Missouri my first year, but it was quite difficult and 7-6 could have easily been the result also.
Didn't do the SEC since it wasn't even rumored back then really, but I agree it would be more difficult. A&M would be harder, Alabama & LSU if they stay good along with Arkansas and a decent OOC schedule would be a fun challenge