Got mine thanks Martin, nice caps.
One question though, How come the blanks have a lower profile to normal HHKB keys?
I was able to fix this by breaking a piece off of a wooden toothpick and pushing it down inside the stem of the key. It was just the right height to raise the key to the same level as the stock Topre keys. I'm sure there is probably a better material to use, but it is working fine so far.
My picture above is before I fixed this, you can see that it is slightly off.