I agree with the order of TSMM, RNRC, and TOT.
We have been able to do all 3 within an hour after official park opening on our last 3 visits. Those were all 8 AM openings: 2 were AM EMH and the other was the Sunday after Christmas 2013 when the park opened at 8 AM.
The key was to be at DHS 30-45 minutes before the official opening and going directly to TSMM so you are in the first wave there. We also ride RNRC using the single rider line when it is open to shorten the wait there.
On one of the trips with EMH we went right to TSMM, but it was down right at open. So we did RNRC and TOT and returned to TSMM at 8:40. It was open by then with a posted time of 40 minutes, but we waited about 20 and we're off the ride shortly after 9.