5-speed options

i want to do this in my duster.
i have t5's that are in low 12 second cars. if you use an aftermarket shifter, dont speed shift it, and dont launch at 6k rpm, they last forever.
tko's are great but for the money i would opt for a t56 instead. i am interested in the supra tranny, how well do the non-turbo 5 speeds work? i have seen a few of these in the yards, no turbo models tho....
oh, and unless you arent making any power, i prefer the .63 od and run a steeper gear with it :)