This is what I installed last year after I got an open box model online for a significant discount. It was easy to set up and works great with HA.

A guy made an intractables guide (and an accompanying youtube video) that would be an excellent starting point for you: https://www.instructables.com/Recycle-Cardboard-Into-Anything-With-3D-Printing/

It’s a bit involved and messy (and will ruin your blender if you do this a lot), but you can get totally usable parts from this method!