Yeah, I have zero experience with 3D printing and all this so for me it’s always a too big of a project. Maybe one day I have a bit more time and can get to it

I hope you didn’t throw out the priv and key. In working order they are ~€150 each on ebay.

I did but all of them had some hardware issues. Still, if I knew I can use them for other projects I would just kept them in some box but I realized it after I got rid of them.