I buy sets of keycaps, e.g. Dolch or Beige, then customize the Esc, Shift, Alt, Del, and arrow keys as I can.
I do it this way because I favor double-shot keycaps, especially nice, thick, GMK keycaps, and it's really the only way to customize with these keycaps.
If WASD offered comparable keycaps, I might go that way but that's not what they offer from what I understand. Qualities other than color and key switch matter to me at least as much, namely being double-shot caps for longevity and being thick enough for the old school feel and feedback that I remember from the Jurassic period.
I believe WASD sells a nice board though as I've bought 3 bare boards from them, one of which I'm using now.