With the new Egyptian gods recently posted in the Paizo blog, my imagination was off on applying some of the PFSRD prestige classes to their worshippers. In particular, the Dawnflower Dissident (of Sarenrae) in Paths of Prestige became the Dissident of Dawn in the SRD. "Must worship Sarenrae" became "Must worship good god of brightness, daylight, or the dawn", which fits Khepri well.
Except that Khepri's favored weapon is the sling, and the rest of the Dissident's generic write-up continues its focus on the scimitar (which isn't really tied to the flavor of the Dissident).
The "Burning Blade" power can easily replace all instances of "scimitar" with "the deity's favored weapon". But that leaves the feat prereqs (Dervish Dance and, redundantly, Weapon Finesse). I thought about replacing them for Khepri with something like Sling Flail or Juggle Load, but that path would mean coming up with some feat appropriate to the favored weapon of each good sun god. So I'm considering instead simply dropping the feat prereq.
What alternatives might I be overlooking?