Z Probe for Quick Tool Change Base

I wanted to mod my ender 3 with ABL using the Z probe solution at https://www.thingiverse.com/thing:3777504.

But since my printer has already been modded using Precious Printing's Quick Tool Change holder, I had to change the V4 base.
https://www.thingiverse.com/thing:3369444

I did the modelling in blender, and I'm fairly new and inexperienced at this.
There may be some slight problems with the model, but Cura was able to process it to gcode.