If you post this question on the discussion for the drop you will get answers faster
As far as I know, there are three ways to get the alphas you want to work with the dvorak layout.
Option 1: Get the alphas, and the DC kit
Option 2: Get the adaptive alphas kit
Option 3: Get 2 sets of the blank alphas
As for the rest of the keys that you need to get, you need to give us more information to help you out. Lets start with this, what keyboard do you have?