Hi again Swoop,
Sorry again for the delay.
So, Dwarven Defender is a WLDQ level PrC. (See here for the break down.) It's one of the classes that are pretty much exactly the same in vanilla NWN as Layo. The idea of a Dwarven Defender is that s/he becomes so honorable and honored among dwarves that s/he gains sponsorship from some wealthy Dwarven Someone and is set upon the world to teach all what a Real Dwarf is. The tag line for DD is often something to the effect of 'the Dwarf's Dwarf'. (You can catch the actual text of the description here if you need/want to.)
The core of what a DD represents is absent from your CDT entries. The sporadic nature is irrelevant with these missing elements. I'm wondering if you have some log bits and/or GM testimony that could be offered in addition to the CDTs to display this sort of attitude and moral compass that might be pointing Iron down this path. The combination of either or both of those along side the CDTs would probably push things forward, assuming the necessary content is there, of course. (No presumptions of anything here, I just hate to state anything that might come across as an open ended promise.)
Get back to me on this and I'll be able to advise a path from there.