The letters (blue) and numbers/punctuation characters (green) are at the correct location. But I am not sure if you plan to engrave the additional characters (brown) and arrow keys (red)? I prefer not to have them on my keyboard.
Currently I’m using the Atreus. I was pretty happy, that I could just flip the caps from US layout to Dvorak. I know, that won’t be possible with the Model 100 as the keys have different sizes. But with the default Atreus’ Dvorak layout the arrow keys and different parenthesis characters are on the FUN layer on your left hand. I’m quite sure I will stay with that layout for the Model 100.
As there is no “default” for Dvorak layouts beside the letters (the original Dvorak layout had even the numbers re-arranged), I guess that many typists would arrange the additional keys on the FUN-layers to their liking. So I would prefer to stay with the U.S. Dvorak layout engraved on the keycaps (blue, green) and leave out any additional characters (red, brown) besides the control keys.
If the order with the additional engraving had already been placed, I would not mind either. It’s very seldom that I have a look on my keyboard while typing.
One thing which I am missing on the Atreus are keycaps with little indication dots for the index finger on the U and H keycaps. Probably that can be arranged for the Model 100 keycaps.