If you can't find a cheap used tri ax...look into the pro motion. Same damn thing but cheaper..even comes with a tri ax handle. Picked mine up new for $140.
Wish I woulda gone with the top line shifter for like $140 in partshopper myself, but my next shifter will definately be MGW.. the tri-ax is nice, so much better than stock but id go pro 5.0 or budget go top line...
heres the new mgw sexiness