Add support to your Varipole so you can (somewhat) safely mount it horizontally, wall-to-wall.
Print it with 6+ perimeters, 40+% infill. PLA is fine.
If you want to modify it: https://cad.onshape.com/documents/b75246be253e7a4060cc9017/v/eac613d31edd24937af9c9b5/e/731c31d2236ee25f4e601d41?renderMode=0&uiState=64bec6f355173d0456c74a51
As featured in my upcoming video: