I also just finished putting them on the ErgoDox. They look nice (will be able to tell if they feel nice in some days). I would recommend though to change the 1x1 thumb keycaps:
- use R5 for the top two (SP: DCS - 1X ROW 5 - BLACK (NN))
- use R1 for the middle one
- use R2 for bottom one
There is no R5 keycaps included in the set, but if you are lucky, Signature Plastics has some left in their inventory (http://keycapsdirect.com/key-capsinventory.php), they are only 1$ a piece. Last time I checked, there was plenty on stock (ABS though).