Okay. If you're serious, then the TCI is out. I'll most likely do a stock rebuild and just swap over the parts from the shift kit I already installed in my current valvebody and the new servo springs in the case, as well.
It has clean shifts around 4500+ RPM when I'm mildly into it, but shifting is hardly noticeable cruising around in Drive. I haven't laid into it hardcore because I have a header leak, so I'm losing serious torque and don't want to disappoint myself.
I actually have a lead on what I can do to fix my current transmission. If that works, I'm sticking with it as long as I can. I'll go ahead and build up the one I removed as back-up, but if it ain't broke, don't fix it.
I have a feeling I'll end up with the Lentech valvebody, though, since it does make available the 1-2-3/4 shifting. We'll see.
Now, to just find the money to order a rebuild kit...