Probably if I were just interested in Waldorf crafts, I would buy the Little Acorn Learning guides and/or Seasons of Joy. That would provide you with plenty of Waldorf flavor, without the academics.
The idea that Waldorf is not rigorous academically is a pet peeve of mine. Waldorf kindy and first grades are very slow and gentle, that is true, but after that it is very on par (if not ahead) of other methods.
I also believe that Waldorf is a very good fit for "gifted" kids. My oldest is very, very bright, and Waldorf has been wonderful for him.
My problem with Oak Meadow is that it is, in my opinion, a watered down education. IT is not rigorous academically (in the grades I have seen, at least), and it also does not provide the holistic, soul nurturing qualities of a true Waldorf curriculum. My fear is that someone would purchase OM and be totally turned off to Waldorf.
If I wanted to mesh Waldorf with some more traditional choices (which I may very well do, actually), I would decide whether I wanted a more or less Waldorf slant. Personally, I am going with a more Waldorf slant, so I am going to use Christopherus' 3rd grade curriculum. If there are any areas that I would like to beef up, I will add on. For example, I am planning to use Ambleside's reading schedule. If I wanted a less Waldorf slant (really just the arts aspects), I would go with Seasons of Joy or Little Acorn Learning. Oh, another option would be to buy A Little Garden Flower curriculum, which is very inexpensive, but will give you a good idea of a true Waldorf curriculum. Then you could add more traditional areas in where needed.