3D printed AIO partitions available?

[Smoke-Town]

I want to setup a little biotope with this 20 or so gallon rimless tank that I used to use for freshwater.

Was wondering if anyone makes partitions I could clip or silicone in place to turn the tank into an AIO to hide equipment?

The closest things I could find were diy sump partitions like these

 

[Smoke-Town]

I see a couple drop in kits for sale at very stupid prices... for the prices over those drop ins which probably won't fit perfectly, I could buy a brand new AIO nano from IM, Fiji, or jbj.

Hoping one of the 3d printer people have figured this out