Well despite all of the other advice I went ahead with my most recent idea of turning my MGT tranny into a single-speed locked transmission. :)
The way I did it I can switch back to normal if it doesn't work out. I did not change any stock part at all.
Here's what the screw looks like in the second gear to lock it:
And here's all the parts from the transmission I don't need after the FOC and my idea were implemented. The first gear spur isn't even used now, as it's locked into second.
Here's a link to a short video of the tranny in action outside of the vehicle.
http://www.rcpics.net/view_single.php?medid=63505
Once I put the electronics back in I'll see how it works and holds up.