My thinking was to keep the discussion down in the area of the fundamentals, rather than wandering off into the weeds, talking about particular verses in the various holy books... how many angels can fit on the head of pin...
It seems to me that to allow the discussion to encompass higher-level ideas in effect grants the premise that the god exists.
As for the nuggets of "supporting evidence" you suggest, I would evaluate them as follows:
a) Circular. Appeal to authority.
b) Non sequitur.
c) Argument from ignorance. Unsupported, and not necessarily related.
d) Argument from ignorance. Unsupported, and not necessarily related.