VW Scirocco MK3 (and probably similar) Rear Camera mount/ Rear Wiper Delete

MODEL IS DISTRIBUTED "AS IS". ANY PROBLEMS- ON YOU.
Otherwise, any ideas on improvement are welcome.

So I felt tired of a rear wiper on my Mk3 Scirocco. It's small, doesn't clean much and looks ugly. And tiny rear window doesn't add much to rear visibility anyways, so decided to move the camera there. 

It's probably gonna fit other vehicles that got a 27 mm hole in the window.
Slick, stylish and even got a nozzle for cleaning your beloved rearview camera. It's designed to copy original VW fitting, so no additional hardware required.

For the camera itself you gotta find those adjustable universal cameras, the inside "sphere" should be 22 mm in diameter, the cylindrical part- 17 mm.
There's no fancy mount method for the housing itself, so just use enough of glass silicone sealant to make it watertight and adhere to the window.

Preferably, print via SLA to make sure that the water channel is watertight, but you're welcome to try with more traditional FDM printers.