I absolutely adore this. I always wondered why Alice had these huge gaps on the bottom row. Adding the keys there (and keeping them all 1.25, so that one could keep a kit's 1.5 bottom row for another board, potentially) seems like a no-brainer. Awesome!
I was worried that the spacebar would be too far to the left... Then I ran a test on my own board and it seems I hit the spacebar between V and B anyway. So I guess this is just perfect.