This is a remix of the codiac2600 Prusa MK3 MK2s M10 reverse Bowden. It is just the right-hand side, but if you use the mirror option in your slicer, you can create a left Z-top with the reverse Bowden. If you need the left side, non-Bowden, to match you can get it from the original maker codiac2600.
The difference between this remix and the original is that I shortened the arm that extends for the reverse Bowden. The filament hole diameter was also opened up to 2.2mm, and I created a larger funnel on the underside without the support material. I also added some design elements to make it match the original Z-top. It requires no post-processing.
You will need the M10 pass through pneumatic coupler which can be found on Amazon, or from several online 3D printer suppliers.
This prints without supports.
I used stock Slic3r .15 quality print settings except I used 3 perimeters instead of 2 and 5 top layers instead of 7.