Tevo tarantula (and others) Z geared stabilizer

After my z-coupler got bent, had trouble finding a cheap solution without having to buy a new coupler. At my location it was waaaay to expensive, so i've tried a few printed solutions with little to no success. At the end I've had the idea to drive the screw by gears, having it movement constraint with a common skate bearing and the old coupler to lock it in place. Works like a charm! Note that you'll have to multiply your stepps per mm by 2 and to reverse the z axis at firmware. Any sugestions