Yes add them directly as per your class's progression table.
Also, you are right, DR0 does not grant a SDA. Here is why:
Rank 0: Creatures of this rank are sometimes called
quasideities or hero deities. Creatures that have a mortal and a deity as parents also fall into this category. These entities cannot grant spells, but are immortal and usually have one or more ability scores that are far above the norm for their species. They may have some worshipers. Ordinary mortals do not have a divine rank of 0. They lack a divine rank altogether.
So, we are not Demigods yet.
HM, here is the RP justification on why she is a Divine Rank 0 only:
[sblock=Story] Since the primordial chaos of Creation, every world that supported life, had a sun in it's skies. Each and every sentient race in existence, began it's worshiping and religions by revering the Sun. Heliasillyel took form and power once the Sun Elves began to advance as a separate race, and rapidly grew in power as her worshipers were blessed with natural longevity.
The Goddess, true to her children's character, loves beauty in art and form, and encourages new beginnings and spontaneity. She does not equate herself with Lavaria's violence and fiery rage, but instead with a tranquil light and benevolent demeanor. She helped them gain knowledge, prosper and eventually grow to one of the most advanced civilizations. With the disvovery of the Spelljammer ships, her peoples have began spreading to other crystal spheres, thus spreading Heliasillyel 's influence as well.
Heliasillyel enjoys taking up the form of a mortal Sun Elven woman, walking the streets of Helivyalla and intermingling with her people. The Goddess of the Sun enjoys dance, song, music and laughter, and will frequently indulge in the week-long festivals that her followers organize for her.
Now, in the new world, only a tinkle of the river of power she possesses can be utilized, as her worshipers are only a handful of Sun Elves that have traveled here via a Spalljammer ship. The Goddess intends on spreading her Dogma and relying on her culturally advanced followers to convert the local populace.[/sblock]
Oh and because some of you were worried that immunities will weaken our characters and their ability to kill each other, here is something to be noted:
Immunities: Deities have the following immunities. Individual
deities may have more immunities.
Unless otherwise indicated,
these immunities do not apply if the attacker is a deity of
equal or higher rank. That's for things like Fire Immunity gained by the Fire subtype. Note that Deities of rank 1 or higher are immune to electricity, cold, and acid, even if the attacker is a deity of higher divine rank.
BTW the SRD has some of the divine rules. Check it out:
