yeah, 6703 crankset is a poor investment.
Imagine my disappointment when I bought it for the same price as a 5603.
however, the middle and outer rings can be swapped for regular 130BCD rings. It's just that it won't look as good.
If you swap the middle ring for a regular, non-tripleizer, ring then you no longer have a triple - you would then have a standard double with a poor chainline.