Not a perfect model but works well enough for me. The angled version is much better with some rubber feet installed, if you have any lying around. A blob of hot glue or something might work as well.
I scaled the dimensions to 240mm x 170mm. There's still some space left over so it could possibly be scaled even bigger.
Printed in PETG, see how that holds up.
The author remixed this model.
Modified from original in TinkerCAD to better fit the Polyphemus.