Adjustable Z axis limit switch mount for TEVO Tarantula

Adjustable Z end stop for Tevo Tarantula.

New to 3d printing. Tevo Tarantula is my first 3D printer.
The green inductive sensor(SN04) failed me as it never detect bed surface at the same spot.
I also fail to adjust the limit switch precisely. After browsing Thingiverse to find some readily available part to print. I found [this](https://www.thingiverse.com/thing:1439423) and [this](https://www.thingiverse.com/thing:1369643) but they require 4 screws and t-nuts to mouth which I don't have. S