It looks like you have quite a few 1u keys for 40% ortho support here, but they shouldn't really be in the base kit. For example, the kit has no matching spacekeys for ortho. Therefore, I recommend removing the following keys:
- R2 1u Out
- R3 1u Data
- R4 1u Shift
- R4 1u Enter
Optionally, you could include an accent-colored R2 1u
Esc key for slightly extended 40% staggered support (4-key instead of 3-key), but that's about the only such key that'd be worthwhile having in base.
2u Shift is a debatable inclusion, but I guess you can keep it for now.
Since all of the spacekeys are in the spacebars kit, you can move the Alice
B key to that kit. Both colors are already used in the kit, so this shouldn't affect pricing (other than by the cost of a single 1u key).