I just 3D printed some wedges to go under my Moonlander: https://www.thingiverse.com/thing:4769961

I have made my own keyboards before, hand-wired with 3D printed cases, and it's probably 20-40 hours of work; significantly more than the $400 that ZSA charges.

I agree that they messed up the thumb clusters. I used to use an Ergodox and that had a pretty goofy arrangement, and the Moonlander doesn't really improve on it.