Since the new tier, CRT is indeed more valuable I think (even more if you have a DRG and/or a SCH in your party). Regarding caps, I'd say go for the old CRT+Dh > 3500 = CRT is better. I've gone this way, it seems to work fine. The HUGE issue with crafting gear for NIN this tier is that their is fuckin SS almost everywere.

I'd say, try not to get any, but I myself fells more "comfortable" around 600-650 SS. (and the Byakko weapon does have SS so...). Try looking at the top tier NIN on FFlog and see what they picked.