I think I just realized what my hang up is with this set with regards to green alphas...
It would be a lot easier to have a full green base set with the white alphas being a separate kit. The white kit could just be alphas and it would work. you wouldn't need to add a numpad and F row keys in there to balance it out since the numpad would match the mods and nav cluster.
That being said, I'm not advocating that it's the right thing to do for this set, I just think that seems like an easier route to take.
GMK Dandy wound up doing two full base sets including Alice support in base for a not terrible price.
GMK Thai Tea also accomplished a dark alphas kit AND included ISO enter and numpad, but they also had a separate spacebars kit with accent spacebars and second b.
One thing that would really sell me on buying the Base set + Green + 40's would be the inclusion of enough keys to cover two full keyboards. So like if there was a novelties set I could use to cover the mods on a 40% and the 40's set had a little better coverage as mentioned previously plus green accent spacebars, I would EASILY buy all the kits to cover 2 boards. That's a huge value add over spending almost as much to cover a single board and having a LOT of plastic leftover. A perfect example of this would be GMK Cafe, which included the novelties and a second Tab in base so you could just buy the second alphas kit and cover two boards. However that set did not include a numpad or ISO enter in base as a result, and I totally understand that is a priority here.