Prusa i3 pro b MK8 accessories mount holder

Mount holes are hard to find on this extruder design. With this upgrade we can now mount cooler, led lights, sensors...

First I downloaded 3D Touch Auto Leveling Sensor mount from: http://www.geeetech.com/wiki/index.php/3DTouch_Auto_Leveling_Sensor . I print it and took some measurment then draw my own. I extended the left and right corner of sensor holder and draw some holes.
I don't yet have a sensor so i hope it will fit on the mount. By visual comparing original and my design it look lik