i've got a split ortho keyboard called corne (you can check my post history for assembly and final result pics), and for a split ergonomic keyboard i'd strongly recommend going for a wireless version (if available) and i wouldn't recommend ortho layout unless you're super committed (if you ever type on smth like a laptop, switch back and forth between ortho and non-ortho is a huge pain, while switching between split and non-split is perfectly fine)