My dad kept getting his rebuilt then finally went with a Brain Hofer transmission with a transbrake installed. Said he never had another issue. I haven't put one in mine yet, but most likely that is who I will go with.
Tell Dad thanks for the vote of confidence.

:redface:
PhatGN,
Do you know James Kiddy? I believe he is in your area. He is putting down some great #`s.
Anyways...
700 ft lbs is no big deal for a properly built 200. The lock up issue is the worst part about what you are looking to do. But, 9 second E.T`s with a 2004R are not difficult to achieve. We do transbrakes in these units 99% of the time.
Look up John Plog. (username johnplogii) Ran low 10`s OVER 600 passes and nearly 4 seasons before a rear end failure blasted the spag in the trans. He is now running 9.7 to 9.8. Just a billet drum and input in that trans. Some local customers in the 9`s. A couple in NJ. Others with 1.3x sixty foots off the brake. I do not claim to have the most units in the 9`s. But, I bet they will do it more times.
Just like Shane pointed out. Any (almost) of the vendors here I would trust in the 9-10 second cars.
For a lock up unit, you are going to need a billet drum, input, OD ring gear and OD planet. Not gonna be cheap, but will be a reliable unit.
Just aside note. We do not build the unit in different stages. So, there is no stage 1, 2, or 3. Most of the billet units are set up for low 10`s, but many have gone quicker. Special request units are done to be good to mid 9`s.
Another side note. The/we vendors will all have issues from time to time. That is the name of the game with these units at times. It has been my experience that when building a "known good core" out of a running car... you have the best results. I have bought tons of cores with unknown histories. Many work awesome. A handful have had weird calibration issues, or some "hidden butchery" performed by a no name corner trans shop. So we all will have a strange unexplained issue form time to time. But, if the valvebody is unhacked, you should be good to go 99.9% of the time.
Give any of us a little more info on your combo, and we can pin it down.
Brian