Thank you. I got plenty of material to research and to think about

That's really dependent on how anal you are with set up and run time. You can make them relatively smooth.

How smooth is the surface? I had some minis printed on filament and the were not smooth, slightly porous And on some layers of filament were visible

If you download a free 3D design software they are super handy around the house for random shit. I've printed a ton of plant trellises.

Yeah for sure, I'm not a total expert but I've printed quite a bit.

Thanks. I appreciate it. First stage of the plan is to sell it to my wife. If I got any more questions can I message you?

You can buy an Ender 3 Pro for $200 USD that will print those with no problems. Creality's slicer program is good. Sometimes they take a little bit of finesse to set up the stepper motors, but there are tons of YT vids on it.