I'm not sure about those exact models but there are some links to pre-built ones in this /r/ErgoMechKeyboards thread [1]. edit: Just found this list of a bunch

I'm not sure about those exact models but there are some links to pre-built ones in this /r/ErgoMechKeyboards thread [1]. edit: Just found this list of a bunch of split keyboards [2]. You should be able to find something on there. [1] https://www.reddit.com/r/ErgoMechKeyboards/comments/f5h3d6/split_keyboard_layout_comparison_site/ https://www.reddit.com/r/ErgoMechKeyboards/comments/f5h3d6/s... [2] https://github.com/diimdeep/awesome-split-keyboards https://github.com/diimdeep/awesome-split-keyboards