Last year I made the switch from the KA2 to a custom built keyboard (Scylla kit from BastardKB) and I have been really happy with it. Keeps the curve of the hand, has better thumb clusters (IMO), is split, and has full customization through QMK. Plus it was fun to try building my own!
Looks great! I’ve got a very similar setup to you but I’ve been lagging on actually setting up my homepage dashboard. I’ve tinkered with it but haven’t actually take the time to figure out all the stuff I want to display on it. I might just end up copying yours! 😁